fix: M4 Phase 1 bugs - dev.chunks refs, search_path, uuid column

Bug fixes from M4 report: - 4 remaining dev.chunks → dev.chunk in SQL queries - search_path includes public for pgvector extension - get_chunk_by_chunk_id_and_uuid: uuid → file_uuid - New endpoint: GET /api/v1/file/:uuid/chunk/:chunk_id
2026-05-11 10:21:06 +08:00
parent 39ba5ddf76
commit cac60c6093
17 changed files with 25156 additions and 8 deletions
--- a/docs_v1.0/M4_HANDOVER/INDEX.md
+++ b/docs_v1.0/M4_HANDOVER/INDEX.md
@@ -0,0 +1,72 @@
+# M4 Handover Package — Complete
+
+## Contents
+
+| File | Size | Description |
+|------|:----:|-------------|
+| `HANDOVER_V2.0.md` | 9.6K | Main handover document |
+| `api_test.sh` | 8.7K | API smoke test (37 endpoints) |
+| `M4_RESPONSE.md` | 1.0K | M4 response (this file) |
+
+### Source Code (choose one)
+
+| File | Size | Description |
+|------|:----:|-------------|
+| `momentry_core_v1.0.1_source.tar.gz` | 204M | Git archive (latest commit) |
+| `momentry_core.bundle` | 150M | Git bundle (full repo, `git clone momentry_core.bundle`) |
+
+### DB Backup (pre-migration)
+
+| File | Size | Description |
+|------|:----:|-------------|
+| `dev.chunks.sql` | 20M | `dev.chunks` table (old schema, pre-migration) |
+| `dev.chunk_vectors.sql` | 56M | `dev.chunk_vectors` table (pre-migration) |
+
+### Scripts
+
+| File | Description |
+|------|-------------|
+| `generate_asr1.py` | Generate correction record from DB + asr.json |
+| `apply_asr_corrections.py` | Apply corrections, preserve chunk_vectors |
+| `clean_sentence_text.py` | LLM cleaning + Qdrant re-embedding |
+| `pipeline_status.py` | Pipeline health check (9 stages) |
+| `split_asr_segments.py` | Sub-window speaker change detection |
+
+## Quick Start (on M4 machine)
+
+```bash
+# 1. Restore DB
+psql -U accusys -d momentry < dev.chunks.sql
+psql -U accusys -d momentry < dev.chunk_vectors.sql
+
+# 2. Apply schema migration
+psql -U accusys -d momentry -c "
+  ALTER TABLE dev.chunks RENAME TO dev.chunk;
+  ALTER TABLE dev.chunk DROP COLUMN IF EXISTS old_chunk_id;
+  ALTER TABLE dev.chunk DROP COLUMN IF EXISTS chunk_index;
+"
+psql -U accusys -d momentry -c "
+  UPDATE dev.chunk SET chunk_id = substring(chunk_id from 34)
+  WHERE chunk_id LIKE (file_uuid || '_%');
+  UPDATE dev.chunk_vectors cv SET chunk_id = substring(cv.chunk_id from 34)
+  FROM dev.chunk c WHERE c.file_uuid = cv.uuid AND cv.chunk_id LIKE (c.file_uuid || '_%');
+"
+
+# 3. Get source code
+git clone momentry_core.bundle momentry_core_0.1
+# or: tar xzf momentry_core_v1.0.1_source.tar.gz
+
+# 4. Apply corrections
+python3 generate_asr1.py
+python3 apply_asr_corrections.py
+
+# 5. Rebuild Qdrant
+python3 clean_sentence_text.py
+
+# 6. Build and run
+cargo build --bin momentry_playground
+DATABASE_SCHEMA=dev ./target/debug/momentry_playground server --port 3003
+
+# 7. Run API test
+bash api_test.sh
+```
--- a/docs_v1.0/M4_HANDOVER/M4_RESPONSE.md
+++ b/docs_v1.0/M4_HANDOVER/M4_RESPONSE.md
@@ -0,0 +1,53 @@
+# M4 Response — All Deliverables Ready
+
+**Date:** 2026-05-11
+**From:** M5
+**To:** M4
+
+## Status
+
+| # | Item | Ref | Status |
+|:-:|------|:---:|:------:|
+| 1 | Source code (git bundle + tar.gz) | §8 | ✅ `momentry_core.bundle` (150M), `momentry_core_v1.0.1_source.tar.gz` (204M) |
+| 2 | DB backup (pre-migration) | §5 #8 | ✅ `dev.chunks.sql` + `dev.chunk_vectors.sql` (76M total) |
+| 3 | Scripts (generate, apply, clean, pipeline) | §2, §9 | ✅ 5 scripts in this directory |
+| 4 | Handover document | §1 | ✅ `HANDOVER_V2.0.md` |
+| 5 | API test script | §4 | ✅ `api_test.sh` (37/37 ✅) |
+| 6 | INDEX.md | — | ✅ Complete contents + quick start |
+
+## Migration Steps (on M4 machine)
+
+```bash
+# 1. Restore DB from backup
+psql -U accusys -d momentry < dev.chunks.sql
+psql -U accusys -d momentry < dev.chunk_vectors.sql
+
+# 2. Schema migration
+psql -U accusys -d momentry -c "
+  ALTER TABLE dev.chunks RENAME TO dev.chunk;
+  ALTER TABLE dev.chunk DROP COLUMN IF EXISTS old_chunk_id;
+  ALTER TABLE dev.chunk DROP COLUMN IF EXISTS chunk_index;
+"
+psql -U accusys -d momentry -c "
+  UPDATE dev.chunk SET chunk_id = substring(chunk_id from 34)
+  WHERE chunk_id LIKE (file_uuid || '_%');
+  UPDATE dev.chunk_vectors cv SET chunk_id = substring(cv.chunk_id from 34)
+  FROM dev.chunk c WHERE c.file_uuid = cv.uuid AND cv.chunk_id LIKE (c.file_uuid || '_%');
+"
+
+# 3. Clone source
+git clone momentry_core.bundle momentry_core_0.1
+# or: tar xzf momentry_core_v1.0.1_source.tar.gz
+
+# 4. Apply corrections
+python3 generate_asr1.py
+python3 apply_asr_corrections.py
+
+# 5. LLM cleanup + Qdrant rebuild
+python3 clean_sentence_text.py
+
+# 6. Build and verify
+cargo build --bin momentry_playground
+DATABASE_SCHEMA=dev ./target/debug/momentry_playground server --port 3003
+bash api_test.sh
+```
--- a/docs_v1.0/M4_HANDOVER/apply_asr_corrections.py
+++ b/docs_v1.0/M4_HANDOVER/apply_asr_corrections.py
@@ -0,0 +1,163 @@
+#!/opt/homebrew/bin/python3.11
+"""
+Apply asr-1.json corrections to dev.chunks.
+DELETE old chunks, INSERT corrected chunks.
+PRESERVE chunk_vectors by renaming old chunk_id to new corrected IDs.
+"""
+import json, os, subprocess, sys, time
+
+PG_BIN = "/Users/accusys/pgsql/18.3/bin"
+DB_USER = "accusys"
+DB_NAME = "momentry"
+OUTPUT_DIR = "/Users/accusys/momentry/output_dev"
+UUID = "aeed71342a899fe4b4c57b7d41bcb692"
+DRY_RUN = "--dry-run" in sys.argv
+
+
+def psql(sql, raw=False):
+    args = [f"{PG_BIN}/psql", "-U", DB_USER, "-d", DB_NAME]
+    if not raw:
+        args += ["-t", "-A"]
+    args += ["-c", sql]
+    r = subprocess.run(args, capture_output=True, text=True, timeout=15)
+    if r.returncode != 0: return None, r.stderr[:200]
+    return r.stdout.strip(), None
+
+
+def esc(val):
+    if val is None: return "NULL"
+    return "'" + str(val).replace("'", "''") + "'"
+
+
+def main():
+    t0 = time.time()
+    fps = 24.0
+    errors = 0
+
+    d = json.load(open(os.path.join(OUTPUT_DIR, f"{UUID}.asr-1.json")))
+    kept = d["kept"]
+    corrections = d["corrections"]
+
+    total = len(kept) + sum(len(c["corrected"]) for c in corrections)
+    print(f"Kept: {len(kept)}, Corrected chunks: {sum(len(c['corrected']) for c in corrections)}, Total: {total}\n")
+
+    # Step 1: DELETE old sentence chunks
+    if not DRY_RUN:
+        psql(f"DELETE FROM dev.chunks WHERE file_uuid='{UUID}' AND chunk_type='sentence';")
+    print(f"Step 1/4: Deleted old chunks (dry_run={DRY_RUN})")
+
+    # Step 2: RENAME chunk_vectors: old chunk_id → new corrected IDs
+    # For kept chunks: chunk_id unchanged → no action needed
+    # For corrections: clone the vector to each new child ID
+    vec_renamed = 0
+    batch_sql = []
+    for c in corrections:
+        old_id = str(c["parent_chunk_index"])
+        new_ids = []
+        for si, child in enumerate(c["corrected"]):
+            new_id = child.get("new_chunk_id", f"{c['parent_chunk_index']}-{si+1:02d}")
+            new_ids.append(new_id)
+        # Check if old_id has a vector in chunk_vectors
+        if not DRY_RUN:
+            out, err = psql(
+                f"SELECT count(*) FROM dev.chunk_vectors "
+                f"WHERE uuid='{UUID}' AND chunk_id='{old_id}'"
+            )
+            count = int(out.strip()) if out and out.strip().isdigit() else 0
+        else:
+            count = 1  # assume exists for dry-run
+
+        if count > 0:
+            # Delete old row, insert new rows for each child (cloning the embedding)
+            if not DRY_RUN:
+                # Get the embedding data
+                out, err = psql(
+                    f"SELECT embedding FROM dev.chunk_vectors "
+                    f"WHERE uuid='{UUID}' AND chunk_id='{old_id}'"
+                )
+                embedding = out.strip() if out and out.strip() else "NULL"
+                # Delete old
+                psql(f"DELETE FROM dev.chunk_vectors WHERE uuid='{UUID}' AND chunk_id='{old_id}'")
+                # Insert new rows
+                for new_id in new_ids:
+                    psql(
+                        f"INSERT INTO dev.chunk_vectors (chunk_id, uuid, chunk_type, embedding) "
+                        f"VALUES ('{new_id}', '{UUID}', 'sentence', '{embedding}'::jsonb)"
+                    )
+            vec_renamed += len(new_ids)
+
+    print(f"Step 2/4: chunk_vectors renamed: {vec_renamed} new entries (dry_run={DRY_RUN})")
+
+    # Step 3: INSERT kept chunks
+    batch = []
+    for k in kept:
+        child_id = str(k["chunk_index"])
+        sf = k["start_frame"]
+        ef = k["end_frame"]
+        text = k["text_content"]
+        st = round(sf / fps, 3)
+        et = round(ef / fps, 3)
+        batch.append(
+            f"INSERT INTO dev.chunks "
+            f"(file_uuid, chunk_id, old_chunk_id, chunk_index, chunk_type, "
+            f"start_time, end_time, start_frame, end_frame, text_content, fps, content) "
+            f"VALUES ("
+            f"'{UUID}', '{child_id}', '{child_id}', 0, 'sentence', "
+            f"{esc(st)}, {esc(et)}, {sf}, {ef}, {esc(text)}, {fps}, "
+            f"'{{\"source\": \"asr-1\"}}'::jsonb"
+            f");"
+        )
+
+    # Step 4: INSERT corrected chunks
+    for c in corrections:
+        for si, child in enumerate(c["corrected"]):
+            child_id = child.get("new_chunk_id", f"{c['parent_chunk_index']}-{si+1:02d}")
+            sf = child["start_frame"]
+            ef = child["end_frame"]
+            text = child["text_content"]
+            st = round(sf / fps, 3)
+            et = round(ef / fps, 3)
+            batch.append(
+                f"INSERT INTO dev.chunks "
+                f"(file_uuid, chunk_id, old_chunk_id, chunk_index, chunk_type, "
+                f"start_time, end_time, start_frame, end_frame, text_content, fps, content) "
+                f"VALUES ("
+                f"'{UUID}', '{child_id}', '{child_id}', 0, 'sentence', "
+                f"{esc(st)}, {esc(et)}, {sf}, {ef}, {esc(text)}, {fps}, "
+                f"'{{\"source\": \"asr-1\"}}'::jsonb"
+                f");"
+            )
+
+    # Execute batch
+    for bs in range(0, len(batch), 100):
+        be = min(bs + 100, len(batch))
+        if not DRY_RUN:
+            for s in batch[bs:be]:
+                out, err = psql(s)
+                if err:
+                    errors += 1
+                    if errors <= 3: print(f"  ERROR: {err[:120]}")
+        pct = be * 100 // len(batch)
+        print(f"  Steps 3+4/4: [{be}/{len(batch)}] {pct}% err={errors} [{time.time()-t0:.0f}s]")
+
+    # Verify
+    if not DRY_RUN:
+        sc = psql(f"SELECT count(*) FROM dev.chunks WHERE file_uuid='{UUID}' AND chunk_type='sentence'")
+        vc = psql(f"SELECT count(*) FROM dev.chunk_vectors WHERE uuid='{UUID}'")
+        mc = psql(
+            f"SELECT count(*) FROM dev.chunk_vectors cv "
+            f"JOIN dev.chunks c ON c.file_uuid=cv.uuid AND c.chunk_id=cv.chunk_id "
+            f"WHERE cv.uuid='{UUID}'"
+        )
+        print(f"\n  Verify: {sc[0].strip()} chunks, {vc[0].strip()} vectors, {mc[0].strip()} matched")
+
+    print(f"\n{'='*50}")
+    print("DRY RUN" if DRY_RUN else "APPLIED")
+    print(f"  Total chunks: {len(batch)}")
+    print(f"  Vectors renamed: {vec_renamed}")
+    print(f"  Errors: {errors}")
+    print(f"  Time: {time.time()-t0:.1f}s")
+
+
+if __name__ == "__main__":
+    main()
--- a/docs_v1.0/M4_HANDOVER/clean_sentence_text.py
+++ b/docs_v1.0/M4_HANDOVER/clean_sentence_text.py
@@ -0,0 +1,173 @@
+#!/opt/homebrew/bin/python3.11
+"""
+LLM-clean all 4188 sentence texts, re-embed, update momentry_dev_v1 + sentence_story.
+"""
+import json, time, os
+from urllib.request import Request, urlopen
+import psycopg2
+
+UUID = "aeed71342a899fe4b4c57b7d41bcb692"
+DB_URL = "postgresql://accusys@localhost:5432/momentry?host=/tmp"
+QDRANT_URL = "http://localhost:6333"
+LLM_URL = "http://localhost:8082/v1/chat/completions"
+EMBED_URL = "http://localhost:11436/v1/embeddings"
+CHECKPOINT = f"/tmp/sentence_clean_{UUID}.json"
+
+def call_llm(prompt):
+    body = json.dumps({"model": "google_gemma-4-26B-A4B-it-Q5_K_M.gguf",
+        "messages": [{"role": "user", "content": prompt}],
+        "temperature": 0.1, "max_tokens": 80}).encode()
+    req = Request(LLM_URL, data=body, headers={"Content-Type": "application/json"})
+    resp = urlopen(req, timeout=30)
+    return json.loads(resp.read())["choices"][0]["message"]["content"].strip()
+
+def call_embed(text):
+    body = json.dumps({"input": text}).encode()
+    req = Request(EMBED_URL, data=body, headers={"Content-Type": "application/json"})
+    resp = urlopen(req, timeout=30)
+    return json.loads(resp.read())["data"][0]["embedding"]
+
+print("=== Step 1: Load all sentences ===")
+conn = psycopg2.connect(DB_URL)
+cur = conn.cursor()
+cur.execute("""
+    SELECT id, chunk_id, text_content
+    FROM dev.chunks
+    WHERE file_uuid = %s AND chunk_type = 'sentence'
+    ORDER BY id
+""", (UUID,))
+rows = cur.fetchall()
+conn.close()
+print(f"Loaded {len(rows)} sentences")
+
+# Reset checkpoint (incompatible with old chunk_index format)
+if os.path.exists(CHECKPOINT):
+    os.remove(CHECKPOINT)
+    print("Old checkpoint removed (format changed)")
+
+results = []
+errors = 0
+
+print("\n=== Step 2: LLM clean + embed ===")
+for i, (cid, chunk_id, text_content) in enumerate(rows):
+    input_text = text_content
+
+    prompt = f"""Clean this movie dialogue line. Fix truncated words, capitalize, add punctuation.
+Return: SPEAKER: "clean text"
+
+Input: [Cary Grant] can't you do something constructive like start
+Return: Cary Grant: "Can't you do something constructive like start?"
+
+Input: [Audrey Hepburn] qui se présente influence d'une manière vitale la proposition l
+Return: Audrey Hepburn: "Qui se présente influence d'une manière vitale la proposition..."
+
+Input: {input_text}
+Return:"""
+
+    try:
+        cleaned = call_llm(prompt)
+        embedding = call_embed(cleaned)
+        time.sleep(0.1)
+    except Exception as e:
+        print(f"  [{i+1}/{len(rows)}] id={cid} chunk={chunk_id} ERROR: {e}")
+        cleaned = input_text
+        embedding = [0.0] * 768
+        errors += 1
+
+    entry = {
+        "index": i,
+        "chunk_id": chunk_id,
+        "original": input_text,
+        "cleaned": cleaned,
+        "embedding": embedding,
+    }
+    results.append(entry)
+    json.dump({"last": i}, open(CHECKPOINT, "w"))
+
+    if (i + 1) % 50 == 0:
+        print(f"  [{i+1}/{len(rows)}] chunk={chunk_id} errors={errors}")
+
+results.sort(key=lambda x: x["index"])
+
+print(f"\nDone: {len(results)} cleaned, {errors} errors")
+
+print("\n=== Step 3: Rebuild momentry_dev_v1 ===")
+# Delete old
+req = Request(f"{QDRANT_URL}/collections/momentry_dev_v1", method="DELETE")
+try: urlopen(req); time.sleep(0.5)
+except: pass
+
+req = Request(f"{QDRANT_URL}/collections/momentry_dev_v1",
+    data=json.dumps({"vectors": {"size": 768, "distance": "Cosine"}}).encode(),
+    headers={"Content-Type": "application/json"}, method="PUT")
+urlopen(req); time.sleep(0.5)
+
+batch_size = 100
+points = []
+for pi, r in enumerate(results):
+    points.append({
+        "id": pi + 1,
+        "vector": r["embedding"],
+        "payload": {
+            "chunk_type": "sentence",
+            "uuid": UUID,
+            "chunk_id": r["chunk_id"],
+            "text": r["cleaned"],
+            "original": r["original"],
+        }
+    })
+
+for start in range(0, len(points), batch_size):
+    batch = points[start:start+batch_size]
+    req = Request(f"{QDRANT_URL}/collections/momentry_dev_v1/points?wait=true",
+        data=json.dumps({"points": batch}).encode(),
+        headers={"Content-Type": "application/json"}, method="PUT")
+    try: urlopen(req)
+    except Exception as e: print(f"  batch {start}: {e}")
+    if (start // batch_size) % 5 == 0:
+        print(f"  momentry_dev_v1: {start+len(batch)}/{len(points)}")
+
+print("  momentry_dev_v1 done")
+
+print("\n=== Step 4: Rebuild sentence_story ===")
+req = Request(f"{QDRANT_URL}/collections/sentence_story", method="DELETE")
+try: urlopen(req); time.sleep(0.5)
+except: pass
+
+req = Request(f"{QDRANT_URL}/collections/sentence_story",
+    data=json.dumps({"vectors": {"size": 768, "distance": "Cosine"}}).encode(),
+    headers={"Content-Type": "application/json"}, method="PUT")
+urlopen(req); time.sleep(0.5)
+
+story_points = []
+for pi, r in enumerate(results):
+    story_points.append({
+        "id": pi + 1,
+        "vector": r["embedding"],
+        "payload": {
+            "chunk_type": "sentence",
+            "uuid": UUID,
+            "chunk_id": r["chunk_id"],
+            "text": r["cleaned"],
+        }
+    })
+
+for start in range(0, len(story_points), batch_size):
+    batch = story_points[start:start+batch_size]
+    req = Request(f"{QDRANT_URL}/collections/sentence_story/points?wait=true",
+        data=json.dumps({"points": batch}).encode(),
+        headers={"Content-Type": "application/json"}, method="PUT")
+    try: urlopen(req)
+    except Exception as e: print(f"  batch {start}: {e}")
+    if (start // batch_size) % 5 == 0:
+        print(f"  sentence_story: {start+len(batch)}/{len(story_points)}")
+
+print("  sentence_story done")
+
+# Verify
+for col in ["momentry_dev_v1", "sentence_story"]:
+    resp = json.loads(urlopen(f"{QDRANT_URL}/collections/{col}").read())
+    info = resp["result"]
+    print(f"Verified {col}: {info['points_count']} pts, {info['config']['params']['vectors'].get('size','?')}D")
+
+print("\n=== Done ===")
--- a/docs_v1.0/M4_HANDOVER/dev.chunk_vectors.sql
+++ b/docs_v1.0/M4_HANDOVER/dev.chunk_vectors.sql
--- a/docs_v1.0/M4_HANDOVER/dev.chunks.sql
+++ b/docs_v1.0/M4_HANDOVER/dev.chunks.sql
--- a/docs_v1.0/M4_HANDOVER/generate_asr1.py
+++ b/docs_v1.0/M4_HANDOVER/generate_asr1.py
@@ -0,0 +1,155 @@
+#!/opt/homebrew/bin/python3.11
+"""
+Generate {uuid}.asr-1.json by comparing asr.json (3417) with DB chunks (4188).
+Identifies which ASR segments were split and records corrections.
+"""
+import json, os, subprocess, sys, time
+
+PG_BIN = "/Users/accusys/pgsql/18.3/bin"
+DB_USER = "accusys"
+DB_NAME = "momentry"
+OUTPUT_DIR = "/Users/accusys/momentry/output_dev"
+UUID = "aeed71342a899fe4b4c57b7d41bcb692"
+
+
+def psql(sql):
+    r = subprocess.run([f"{PG_BIN}/psql", "-U", DB_USER, "-d", DB_NAME, "-t", "-A", "-F", chr(31), "-c", sql],
+        capture_output=True, text=True, timeout=30)
+    return r.stdout.strip()
+
+
+def main():
+    t0 = time.time()
+    print(f"Loading ASR segments from {UUID}.asr.json...")
+    asr_path = os.path.join(OUTPUT_DIR, f"{UUID}.asr.json")
+    with open(asr_path) as f:
+        asr_data = json.load(f)
+    asr_segs = asr_data["segments"]
+    print(f"  {len(asr_segs)} ASR segments")
+
+    print("Loading DB sentence chunks...")
+    rows = []
+    raw = psql(
+        f"SELECT chunk_index, start_frame, end_frame, start_time, end_time, chunk_id, text_content "
+        f"FROM dev.chunks WHERE file_uuid='{UUID}' AND chunk_type='sentence' "
+        f"ORDER BY chunk_index"
+    )
+    for line in raw.split("\n"):
+        if not line.strip():
+            continue
+        parts = line.split(chr(31))
+        rows.append(parts)
+
+    db_chunks = []
+    for r in rows:
+        db_chunks.append({
+            "chunk_index": int(r[0]),
+            "start_frame": int(r[1]),
+            "end_frame": int(r[2]),
+            "start_time": float(r[3]),
+            "end_time": float(r[4]),
+            "chunk_id": r[5],
+            "text_content": r[6] if len(r) > 6 and r[6] else "",
+        })
+    print(f"  {len(db_chunks)} DB chunks")
+
+    # For each DB chunk, find the best-matching ASR segment.
+    # A DB chunk belongs to ASR segment i if chunk's time range
+    # falls WITHIN ASR segment i's time range.
+    asr_of_chunk = {}  # chunk_index -> asr_idx
+    for dc in db_chunks:
+        ct_mid = (dc["start_time"] + dc["end_time"]) / 2
+        best_asr = None
+        for ai, a in enumerate(asr_segs):
+            if a["start"] - 0.1 <= dc["start_time"] and dc["end_time"] <= a["end"] + 0.1:
+                if best_asr is None:
+                    best_asr = ai
+                else:
+                    prev_a = asr_segs[best_asr]
+                    prev_mid = (prev_a["start"] + prev_a["end"]) / 2
+                    if abs(ct_mid - prev_mid) > abs(ct_mid - (a["start"] + a["end"]) / 2):
+                        best_asr = ai
+        if best_asr is not None:
+            asr_of_chunk[dc["chunk_index"]] = best_asr
+
+    print(f"  Mapped: {len(asr_of_chunk)} / {len(db_chunks)} chunks to ASR segments")
+
+    # Group DB chunks by ASR index
+    from collections import defaultdict
+    chunks_by_asr = defaultdict(list)
+    for ci, ai in asr_of_chunk.items():
+        chunks_by_asr[ai].append(ci)
+
+    # Build kept + corrections
+    corrections = []
+    kept = []
+    for ai, child_indices in sorted(chunks_by_asr.items()):
+        if len(child_indices) < 2:
+            dc = db_chunks[child_indices[0]]
+            kept.append({
+                "chunk_index": ai,
+                "start_frame": dc["start_frame"],
+                "end_frame": dc["end_frame"],
+                "text_content": dc["text_content"],
+            })
+            continue
+        a = asr_segs[ai]
+        children = []
+        for ci in child_indices:
+            dc = db_chunks[ci]
+            children.append({
+                "chunk_id": dc["chunk_id"],
+                "start_frame": dc["start_frame"],
+                "end_frame": dc["end_frame"],
+                "text_content": dc["text_content"],
+            })
+        children_sorted = sorted(children, key=lambda x: x["start_frame"])
+
+        # Assign new chunk_id format based on chunk_index
+        # The first child of parent ASR idx N gets "N-01", second "N-02", etc.
+        for si, child in enumerate(children_sorted):
+            child["new_chunk_id"] = f"{ai}-{si+1:02d}"
+
+        corrections.append({
+            "parent_chunk_index": ai,
+            "reason": "split",
+            "original": {
+                "start_frame": int(a["start"] * 24),
+                "end_frame": int(a["end"] * 24),
+                "text_content": a["text"],
+            },
+            "corrected": children_sorted
+        })
+
+    total_corrected = sum(len(c["corrected"]) for c in corrections)
+    print(f"  Kept chunks: {len(kept)}")
+    print(f"  Corrected chunks: {total_corrected}")
+    print(f"  Total: {len(kept) + total_corrected} (should be {len(db_chunks)})\n")
+
+    # Write output
+    output = {
+        "file_uuid": UUID,
+        "asr_version": 1,
+        "kept": kept,
+        "corrections": corrections
+    }
+    output_path = os.path.join(OUTPUT_DIR, f"{UUID}.asr-1.json")
+    with open(output_path, "w") as f:
+        json.dump(output, f, indent=2, ensure_ascii=False)
+    print(f"\nSaved: {output_path} ({os.path.getsize(output_path) / 1024:.0f} KB)")
+
+    # Stats
+    split_sizes = {}
+    for c in corrections:
+        n = len(c["corrected"])
+        split_sizes[n] = split_sizes.get(n, 0) + 1
+    print(f"\nSplit distribution:")
+    for n in sorted(split_sizes):
+        print(f"  {n} children: {split_sizes[n]} ASR segments → {n * split_sizes[n]} chunks")
+
+    elapsed = time.time() - t0
+    print(f"\nElapsed: {elapsed:.1f}s")
+
+
+if __name__ == "__main__":
+    main()
--- a/docs_v1.0/M4_HANDOVER/momentry_core.bundle
+++ b/docs_v1.0/M4_HANDOVER/momentry_core.bundle
--- a/docs_v1.0/M4_HANDOVER/pipeline_status.py
+++ b/docs_v1.0/M4_HANDOVER/pipeline_status.py
@@ -0,0 +1,293 @@
+#!/opt/homebrew/bin/python3.11
+"""
+Pipeline Status — checklist + health + timeline monitoring
+Output: JSON for machine parsing, formatted table for human reading
+"""
+
+import json, os, subprocess, sys, time
+from datetime import datetime
+from pathlib import Path
+
+PROJECT = Path(__file__).resolve().parent.parent
+OUTPUT_DIR = Path(os.environ.get("MOMENTRY_OUTPUT_DIR", "/Users/accusys/momentry/output_dev"))
+PG_BIN = "/Users/accusys/pgsql/18.3/bin"
+DB_USER = os.environ.get("USER", "accusys")
+DB_NAME = "momentry"
+QDRANT_URL = os.environ.get("QDRANT_URL", "http://localhost:6333")
+QDRANT_COL = os.environ.get("QDRANT_COLLECTION", "momentry_dev_v1")
+
+now = time.time()
+proc = subprocess.run
+
+
+def psql(sql: str) -> str:
+    r = proc([f"{PG_BIN}/psql", "-U", DB_USER, "-d", DB_NAME, "-t", "-A", "-c", sql],
+             capture_output=True, text=True, timeout=30)
+    return r.stdout.strip()
+
+
+def file_size(path: str) -> str:
+    p = Path(path)
+    if not p.exists(): return "missing"
+    kb = p.stat().st_size // 1024
+    if kb > 1024: return f"{kb//1024}MB"
+    return f"{kb}KB"
+
+
+def fmt_secs(s: float) -> str:
+    if s < 60: return f"{s:.0f}s"
+    if s < 3600: return f"{s//60:.0f}m {s%60:.0f}s"
+    return f"{s//3600:.0f}h {(s%3600)//60:.0f}m"
+
+
+def health_check() -> dict:
+    """System health"""
+    h = {}
+    # CPU
+    try:
+        load = os.getloadavg()
+        h["cpu_load_1m"] = round(load[0], 1)
+        h["cpu_load_5m"] = round(load[1], 1)
+    except: h["cpu_load_1m"] = h["cpu_load_5m"] = -1
+    # Memory
+    try:
+        m = proc(["vm_stat"], capture_output=True, text=True).stdout
+        # Use ps for a simpler reading
+        rss = None
+        for line in proc(["ps", "-A", "-o", "rss="], capture_output=True, text=True).stdout.strip().split('\n'):
+            if line.strip():
+                if rss is None: rss = 0
+                rss += int(line.strip())
+        if rss:
+            h["memory_used_mb"] = rss // 1024
+    except: pass
+    # Disk
+    try:
+        d = proc(["df", "-h", str(OUTPUT_DIR)], capture_output=True, text=True).stdout.strip().split('\n')[-1].split()
+        h["disk_use_pct"] = d[4] if len(d) > 4 else "?"
+        h["disk_avail"] = d[3] if len(d) > 3 else "?"
+    except: pass
+    # GPU (ANE/MPS)
+    try:
+        if Path("/opt/homebrew/bin/python3.11").exists():
+            g = proc(["/opt/homebrew/bin/python3.11", "-c",
+                "import torch; print(torch.backends.mps.is_available())"],
+                capture_output=True, text=True, timeout=5)
+            h["gpu_available"] = g.stdout.strip() == "True"
+    except: h["gpu_available"] = False
+    # Services
+    services = {"postgresql": False, "redis": False, "qdrant": False, "embedding": False}
+    try:
+        services["postgresql"] = proc([f"{PG_BIN}/pg_isready"], capture_output=True, timeout=5).returncode == 0
+    except: pass
+    try:
+        r = proc(["redis-cli", "-a", "accusys", "ping"], capture_output=True, timeout=5)
+        services["redis"] = "PONG" in r.stdout.decode()
+    except:
+        try:
+            r = proc(["redis-cli", "ping"], capture_output=True, timeout=3)
+            services["redis"] = "PONG" in r.stdout.decode()
+        except: pass
+    try:
+        r = proc(["curl", "-s", "-o", "/dev/null", "-w", "%{http_code}", "--connect-timeout", "3",
+            "http://localhost:6333/healthz"], capture_output=True, timeout=5)
+        services["qdrant"] = r.stdout.decode().strip() == "200"
+    except: pass
+    try:
+        r = proc(["curl", "-s", "--connect-timeout", "3", "http://localhost:11436/health"],
+            capture_output=True, timeout=5)
+        out = r.stdout.decode()
+        services["embedding"] = '"ok"' in out or '"status":"ok"' in out
+    except: pass
+    h["services"] = services
+    return h
+
+
+def check_job(uuid: str) -> dict:
+    """Run checklist for a file_uuid and return status + timing"""
+    stages = []
+    t0 = time.time()
+
+    # 1. ASR (pass 1: faster-whisper small)
+    t = time.time()
+    f = OUTPUT_DIR / f"{uuid}.asr.json"
+    ok = f.exists() and f.stat().st_size > 0
+    segs = 0
+    if ok:
+        try:
+            with open(f) as fh: d = json.load(fh)
+            segs = len(d.get("segments", []))
+        except: ok = False
+    stages.append({"name": "ASR", "passed": ok and segs > 0, "detail": f"faster-whisper ({segs})" if ok else file_size(str(f)),
+        "elapsed": round(time.time() - t, 1)})
+
+    # 2. ASRX (ECAPA-TDNN speaker diarization)
+    t = time.time()
+    f = OUTPUT_DIR / f"{uuid}.asrx.json"
+    ok = f.exists() and f.stat().st_size > 0
+    segs = 0
+    if ok:
+        try:
+            with open(f) as fh: d = json.load(fh)
+            segs = len(d.get("segments", []))
+        except: ok = False
+    stages.append({"name": "ASRX", "passed": ok and segs > 0, "detail": f"ECAPA-TDNN ({segs})" if ok else file_size(str(f)),
+        "elapsed": round(time.time() - t, 1)})
+
+    # 3. ASR2 (pass 2: correct split segments)
+    t = time.time()
+    f2 = OUTPUT_DIR / f"{uuid}.asr-1.json"
+    ok2 = f2.exists() and f2.stat().st_size > 0
+    cnt2 = 0
+    if ok2:
+        try:
+            with open(f2) as fh: d2 = json.load(fh)
+            cnt2 = len(d2.get("kept", [])) + sum(len(c["corrected"]) for c in d2.get("corrections", []))
+        except: ok2 = False
+    stages.append({"name": "ASR2", "passed": ok2 and cnt2 > 0, "detail": f"{cnt2} chunks (asr-1.json)" if ok2 else file_size(str(f2)),
+        "elapsed": round(time.time() - t, 1)})
+
+    # 4. Sentence Chunks (DB)
+    t = time.time()
+    cnt = int(psql(f"SELECT count(*) FROM dev.chunk WHERE file_uuid='{uuid}' AND chunk_type='sentence'"))
+    stages.append({"name": "Sentence", "passed": cnt > 0, "detail": f"{cnt} DB", "elapsed": round(time.time() - t, 1)})
+
+    # 5. Vectorization
+    t = time.time()
+    vec = int(psql(f"SELECT count(*) FROM dev.chunk_vectors WHERE uuid='{uuid}'"))
+    qdrant_ok = False
+    try:
+        r = proc(["curl", "-s", "--connect-timeout", "3", "-X", "POST",
+            f"{QDRANT_URL}/collections/{QDRANT_COL}/points/count",
+            "-H", "Content-Type: application/json", "-d", '{"exact": true}'],
+            capture_output=True, timeout=5)
+        qdrant_ok = b'"count"' in r.stdout
+    except: pass
+    if not qdrant_ok:
+        try:
+            r = proc(["curl", "-s", "--connect-timeout", "3",
+                f"{QDRANT_URL}/collections/{QDRANT_COL}/points/scroll?limit=1&with_payload=false"],
+                capture_output=True, timeout=5)
+            qdrant_ok = b'"points"' in r.stdout
+        except: pass
+    stages.append({"name": "Vectorize", "passed": vec > 0 and qdrant_ok,
+        "detail": f"{vec} PG, Qdrant={'ok' if qdrant_ok else '?'}",
+        "elapsed": round(time.time() - t, 1)})
+
+    # 6. Face Trace
+    t = time.time()
+    traces = int(psql(f"SELECT count(DISTINCT trace_id) FROM dev.face_detections WHERE file_uuid='{uuid}' AND trace_id IS NOT NULL"))
+    faces = int(psql(f"SELECT count(*) FROM dev.face_detections WHERE file_uuid='{uuid}' AND trace_id IS NOT NULL"))
+    stages.append({"name": "FaceTrace", "passed": traces > 0,
+        "detail": f"{traces} traces, {faces} faces",
+        "elapsed": round(time.time() - t, 1)})
+
+    # 7. TKG
+    t = time.time()
+    nodes = int(psql(f"SELECT count(*) FROM dev.tkg_nodes WHERE file_uuid='{uuid}'"))
+    edges = int(psql(f"SELECT count(*) FROM dev.tkg_edges WHERE file_uuid='{uuid}'"))
+    stages.append({"name": "TKG", "passed": nodes > 0,
+        "detail": f"{nodes} nodes, {edges} edges",
+        "elapsed": round(time.time() - t, 1)})
+
+    # 8. Trace Chunks
+    t = time.time()
+    tc = int(psql(f"SELECT count(*) FROM dev.chunk WHERE file_uuid='{uuid}' AND chunk_type='trace'"))
+    stages.append({"name": "TraceChunks", "passed": tc > 0, "detail": f"{tc} chunks",
+        "elapsed": round(time.time() - t, 1)})
+
+    # 9. Phase 1 Release
+    t = time.time()
+    p1 = PROJECT / "release" / "phase1" / "latest"
+    p1_files = [p1 / "RELEASE_INFO.txt", p1 / "schema.sql", p1 / "snapshots"]
+    p1_ok = all(f.exists() for f in p1_files)
+    p1_size = sum(f.stat().st_size for f in p1.rglob("*") if f.is_file()) // 1024 if p1.exists() else 0
+    stages.append({"name": "Phase1", "passed": p1_ok,
+        "detail": f"{p1_size//1024}MB" if p1_size > 1024 else f"{p1_size}KB",
+        "elapsed": round(time.time() - t, 1)})
+
+    all_passed = all(s["passed"] for s in stages)
+    return {"uuid": uuid, "passed": all_passed, "stages": stages,
+        "checked_at": datetime.utcnow().isoformat() + "Z",
+        "total_elapsed": round(time.time() - t0, 1)}
+
+
+def format_report(job: dict, health: dict) -> str:
+    """Pretty-print the status report"""
+    lines = []
+    lines.append(f"{'='*70}")
+    lines.append(f"  Pipeline Status — {job['uuid'][:16]}...  {job['checked_at']}")
+    lines.append(f"{'='*70}")
+
+    # Checklist
+    lines.append(f"\n  {'Stage':<15} {'Status':<9} {'Detail':<25} {'Time':<8}")
+    lines.append(f"  {'-'*57}")
+    for s in job["stages"]:
+        st = "✅" if s["passed"] else "❌"
+        lines.append(f"  {s['name']:<15} {st:<9} {s['detail']:<25} {s['elapsed']:.1f}s")
+    lines.append(f"  {'-'*57}")
+    lines.append(f"  {'TOTAL':<15} {'✅' if job['passed'] else '❌':<9} {'':<25} {job['total_elapsed']:.1f}s")
+
+    # Health
+    lines.append(f"\n{'─'*70}")
+    lines.append("  SYSTEM HEALTH")
+    lines.append(f"{'─'*70}")
+    h = health
+    lines.append(f"  CPU Load:     {h.get('cpu_load_1m','?')} (1m)  {h.get('cpu_load_5m','?')} (5m)")
+    if 'memory_used_mb' in h:
+        total_mb = 49152
+        pct = round(h['memory_used_mb'] / total_mb * 100, 1)
+        lines.append(f"  Memory:       {h['memory_used_mb']}MB / {total_mb}MB ({pct}%)")
+    if 'disk_use_pct' in h:
+        lines.append(f"  Disk:         {h['disk_use_pct']} used, {h['disk_avail']} avail")
+    lines.append(f"  GPU (MPS):    {'✅' if h.get('gpu_available') else '❌'}")
+    svc = h.get("services", {})
+    svc_str = "  ".join(f"{k}={chr(10003) if v else chr(10007)}" for k, v in svc.items())
+    lines.append(f"  Services:     {svc_str}")
+
+    # Processor Timing (from DB)
+    try:
+        proc_data = psql(f"""SELECT processor, 
+            extract(epoch from (completed_at - created_at))::int as duration_secs
+            FROM dev.processor_results WHERE job_id IN 
+            (SELECT id FROM dev.monitor_jobs WHERE uuid='{job['uuid']}') 
+            AND completed_at IS NOT NULL 
+            ORDER BY created_at""")
+        processors = []
+        for line in proc_data.split('\n'):
+            if not line.strip() or '|' not in line: continue
+            p = line.split('|')
+            processors.append({"name": p[0], "duration_secs": int(p[1]) if p[1] else 0})
+        health["processors"] = processors
+    except: pass
+
+    if "processors" in health:
+        lines.append(f"\n{'─'*70}")
+        lines.append("  PROCESSOR TIMING")
+        lines.append(f"{'─'*70}")
+        for p in health.get("processors", []):
+            dur = p.get("duration_secs", 0)
+            lines.append(f"  {p['name']:<25} {fmt_secs(dur) if dur else 'running'}")
+
+    lines.append(f"\n{'='*70}\n")
+    return "\n".join(lines)
+
+
+def main():
+    import argparse
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--uuid", default="aeed71342a899fe4b4c57b7d41bcb692")
+    parser.add_argument("--json", action="store_true", help="Output JSON only")
+    args = parser.parse_args()
+
+    job = check_job(args.uuid)
+    health = health_check()
+
+    if args.json:
+        print(json.dumps({"job": job, "health": health, "timestamp": job["checked_at"]}, indent=2))
+    else:
+        print(format_report(job, health))
+
+
+if __name__ == "__main__":
+    main()
--- a/docs_v1.0/M4_HANDOVER/split_asr_segments.py
+++ b/docs_v1.0/M4_HANDOVER/split_asr_segments.py
@@ -0,0 +1,204 @@
+#!/opt/homebrew/bin/python3.11
+"""
+Split ASR segments at detected speaker change points.
+Uses ECAPA-TDNN sub-window classification against reference centroids.
+
+Output: new asrx_fine.json with fine-grained segments + parent_asr_idx reference.
+"""
+import json, sys, os, time, argparse, subprocess, tempfile, shutil
+import numpy as np
+from collections import Counter
+from pathlib import Path
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), "asrx_self"))
+from main_fixed import SelfASRXFixed
+from speaker_encoder import extract_speaker_embedding, normalize_embeddings
+import torchaudio, psycopg2
+
+SUB_WIN = 0.5
+SUB_STRIDE = 0.25
+CHANGE_CONFIRM = 2
+MIN_DUR = 0.7
+BATCH_SIZE = 500
+
+def load_reference(uuid, db_url):
+    conn = psycopg2.connect(db_url)
+    cur = conn.cursor()
+    cur.execute("SELECT chunk_index, metadata->>'new_speaker_name' FROM dev.chunks WHERE file_uuid=%s AND chunk_type='sentence' ORDER BY chunk_index", (uuid,))
+    name_by_idx = dict(cur.fetchall())
+    conn.close()
+    
+    asrx_path = f"/Users/accusys/momentry/output_dev/{uuid}.asrx.json"
+    asrx_full = json.load(open(asrx_path))
+    ref = {"Cary Grant": [], "Audrey Hepburn": [], "Unknown": []}
+    for i, seg in enumerate(asrx_full["segments"]):
+        name = name_by_idx.get(i, "Unknown")
+        if name in ref and i < len(asrx_full.get("embeddings", [])):
+            ref[name].append(np.array(asrx_full["embeddings"][i]))
+    
+    centroids = {}
+    for name, el in ref.items():
+        if el:
+            c = np.mean(el, axis=0)
+            centroids[name] = c / (np.linalg.norm(c) + 1e-10)
+    name_to_speaker = {}
+    for i, seg in enumerate(asrx_full["segments"]):
+        name = name_by_idx.get(i, "Unknown")
+        sid = seg["speaker_id"]
+        name_to_speaker.setdefault(name, sid)
+    return centroids, name_to_speaker
+
+def extract_audio(video_path, sr=16000):
+    tmp = tempfile.mkdtemp(prefix="asr_split_")
+    wav = os.path.join(tmp, "audio.wav")
+    subprocess.run(["ffmpeg", "-y", "-v", "quiet", "-i", video_path,
+        "-ar", str(sr), "-ac", "1", "-sample_fmt", "s16", wav], check=True, capture_output=True, timeout=300)
+    wav_data, sr_actual = torchaudio.load(wav)
+    if wav_data.shape[0] > 1:
+        wav_data = wav_data.mean(dim=0, keepdim=True)
+    return wav_data, sr_actual, tmp
+
+def classify(emb, centroids):
+    return max(centroids, key=lambda n: float(np.dot(emb, centroids[n])))
+
+def process_batch(asr_segs, wav, sr, centroids, encoder, offset_start=0):
+    ws = int(SUB_WIN * sr)
+    sw = int(SUB_STRIDE * sr)
+    results = []
+    for si, s in enumerate(asr_segs):
+        st = s["start"] - offset_start
+        et = s["end"] - offset_start
+        dur = et - st
+        
+        if dur < 1.0:
+            a = wav[:, int(st*sr):int(et*sr)]
+            e = extract_speaker_embedding(encoder, a.numpy(), sr)
+            e /= np.linalg.norm(e) + 1e-10
+            results.append((s["start"], s["end"], classify(e, centroids), si))
+            continue
+        
+        ss = int(st*sr); se = int(et*sr)
+        sub_e, sub_t = [], []
+        for wpos in range(ss, se-ws+1, sw):
+            chunk = wav[:, wpos:wpos+ws]
+            sub_e.append(extract_speaker_embedding(encoder, chunk.numpy(), sr))
+            sub_t.append(wpos/sr + offset_start)
+        
+        if len(sub_e) < 3:
+            a = wav[:, ss:se]
+            e = extract_speaker_embedding(encoder, a.numpy(), sr)
+            e /= np.linalg.norm(e) + 1e-10
+            results.append((s["start"], s["end"], classify(e, centroids), si))
+            continue
+        
+        sub_e = normalize_embeddings(np.array(sub_e))
+        names = []
+        for i in range(len(sub_e)):
+            names.append(classify(sub_e[i], centroids))
+        
+        # Smooth
+        sm = list(names)
+        for i in range(1, len(names)-1):
+            sm[i] = Counter(names[max(0,i-1):min(len(names),i+2)]).most_common(1)[0][0]
+        
+        # Find splits
+        splits = []
+        prev = sm[0]
+        for i in range(1, len(sm)):
+            if sm[i] != prev:
+                if i+CHANGE_CONFIRM < len(sm) and all(sm[i]==sm[j] for j in range(i, i+CHANGE_CONFIRM+1)):
+                    splits.append(sub_t[i]); prev = sm[i]
+                elif i+CHANGE_CONFIRM >= len(sm):
+                    splits.append(sub_t[i]); prev = sm[i]
+        
+        if not splits:
+            results.append((s["start"], s["end"], Counter(names).most_common(1)[0][0], si))
+        else:
+            boundaries = [s["start"]] + splits + [s["end"]]
+            for pi in range(len(boundaries)-1):
+                ps, pe = boundaries[pi], boundaries[pi+1]
+                if pe-ps < MIN_DUR: continue
+                sub_i = [i for i, t in enumerate(sub_t) if ps <= t < pe]
+                lbl = Counter([names[i] for i in sub_i]).most_common(1)[0][0] if sub_i else Counter(names).most_common(1)[0][0]
+                results.append((round(ps,2), round(pe,2), lbl, si))
+    
+    return results
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--uuid", default="aeed71342a899fe4b4c57b7d41bcb692")
+    parser.add_argument("--output", help="Output path for fine ASRX JSON")
+    args = parser.parse_args()
+    
+    UUID = args.uuid
+    BASE = "/Users/accusys/momentry/output_dev"
+    DB_URL = "postgresql://accusys@localhost:5432/momentry?host=/tmp"
+    VIDEO = "/Users/accusys/momentry/var/sftpgo/data/demo/Charade (1963) Cary Grant & Audrey Hepburn \uff5c Comedy Mystery Romance Thriller \uff5c Full Movie.mp4"
+    
+    print(f"Processing {UUID}")
+    
+    centroids, name_to_speaker = load_reference(UUID, DB_URL)
+    print(f"Centroids: {list(centroids.keys())}")
+    
+    asr = json.load(open(f"{BASE}/{UUID}.asr.json"))
+    asr_segs = asr["segments"]
+    print(f"ASR segments: {len(asr_segs)}")
+    
+    print("Extracting audio...")
+    wav, sr, tmp_dir = extract_audio(VIDEO)
+    print(f"Audio: {wav.shape[1]/sr:.0f}s")
+    
+    inst = SelfASRXFixed()
+    encoder = inst.speaker_encoder
+    
+    all_results = []
+    t0 = time.time()
+    for batch_start in range(0, len(asr_segs), BATCH_SIZE):
+        batch = asr_segs[batch_start:batch_start + BATCH_SIZE]
+        segs = process_batch(batch, wav, sr, centroids, encoder)
+        all_results.extend(segs)
+        pct = (batch_start + len(batch)) * 100 // len(asr_segs)
+        print(f"  {batch_start+len(batch)}/{len(asr_segs)} ({pct}%) -> {len(all_results)} segments [{time.time()-t0:.0f}s]")
+    
+    shutil.rmtree(tmp_dir, ignore_errors=True)
+    
+    # Build output
+    spk_stats = {}
+    out_segs = []
+    # Assign sequential SPEAKER_X IDs based on name order
+    name_order = {name: i for i, name in enumerate(sorted(set(s[2] for s in all_results)))}
+    
+    for start, end, name, asr_idx in all_results:
+        sid = f"SPEAKER_{name_order[name]}"
+        dur = end - start
+        spk_stats.setdefault(sid, {"count": 0, "duration": 0})
+        spk_stats[sid]["count"] += 1
+        spk_stats[sid]["duration"] += dur
+        out_segs.append({
+            "start_time": start,
+            "end_time": end,
+            "speaker_id": sid,
+            "speaker_name": name,
+            "parent_asr_idx": asr_idx,
+        })
+    
+    output = {
+        "uuid": UUID,
+        "language": "en",
+        "segments": out_segs,
+        "speaker_stats": spk_stats,
+        "total_asr_segments": len(asr_segs),
+        "total_fine_segments": len(out_segs),
+    }
+    
+    output_path = args.output or f"{BASE}/{UUID}.asrx_fine.json"
+    json.dump(output, open(output_path, "w"), indent=2)
+    print(f"\nSaved: {output_path}")
+    print(f"Segments: {len(out_segs)} (was {len(asr_segs)}, +{len(out_segs)-len(asr_segs)})")
+    print(f"Speakers: {len(spk_stats)}")
+    for sid, st in sorted(spk_stats.items()):
+        print(f"  {sid}: {st['count']} segs, {st['duration']:.0f}s")
+
+if __name__ == "__main__":
+    main()
--- a/docs_v1.0/M4_workspace/2026-05-11_Phase1_bug_report.md
+++ b/docs_v1.0/M4_workspace/2026-05-11_Phase1_bug_report.md
@@ -0,0 +1,97 @@
+# Bug Report: Schema Migration Bugs Found During M4 Phase 1 Testing
+
+**Date**: 2026-05-11
+**From**: M4 (Integration & Testing)
+**To**: M5 (Development)
+**Priority**: High (3 bugs, all cause 500 errors)
+
+---
+
+## Bug 1: Stale `dev.chunks` References After Table Rename
+
+M5 renamed `dev.chunks` → `dev.chunk` but 4 SQL queries still hardcoded `dev.chunks`, causing "relation does not exist" errors.
+
+### Affected Files
+
+| File | Line | Old | New |
+|------|------|-----|-----|
+| `src/core/db/postgres_db.rs` | 4626 | `FROM dev.chunks` | `FROM dev.chunk` |
+| `src/api/five_w1h_agent_api.rs` | 779 | `UPDATE dev.chunks SET embedding` | `UPDATE dev.chunk SET embedding` |
+| `src/worker/processor.rs` | 1083 | `UPDATE dev.chunks SET metadata` | `UPDATE dev.chunk SET metadata` |
+| `src/worker/job_worker.rs` | 1005 | `FROM dev.chunks WHERE` | `FROM dev.chunk WHERE` |
+
+### Why M5 Tests Passed
+M5 likely still had the OLD table (ALTER RENAME keeps source, M5 may not have dropped it). M4 followed the migration exactly (RENAME), so the old table is gone.
+
+### Trigger
+- `POST /api/v1/search/smart` → 500 error "relation dev.chunks does not exist"
+
+---
+
+## Bug 2: `search_path` Missing `public` — pgvector `vector` Type Not Found
+
+`after_connect` sets `SET search_path TO dev` which REPLACES the default `"$user", public` — losing access to `public` schema where pgvector extension lives.
+
+### Affected Code
+```rust
+// src/core/db/postgres_db.rs:745
+sqlx::query(&format!("SET search_path TO {}", schema))
+```
+
+### Fix
+```rust
+sqlx::query(&format!("SET search_path TO {}, public", schema))
+```
+
+### Trigger
+- Any query using `::vector` cast (e.g., `search_parent_chunks_semantic`) after `SET search_path TO dev`
+- Error: "type vector does not exist"
+
+---
+
+## Bug 3: `get_chunk_by_chunk_id_and_uuid` Uses Wrong Column Name
+
+The function queries `SELECT ... uuid, ... WHERE uuid = $2` but the `dev.chunk` table column is `file_uuid`, not `uuid`.
+
+### Affected Code
+```rust
+// src/core/db/postgres_db.rs:2776
+"SELECT ... uuid, ... FROM {} WHERE chunk_id = $1 AND uuid = $2"
+```
+
+### Fix
+```sql
+SELECT ... file_uuid as uuid, ... FROM dev.chunk WHERE chunk_id = $1 AND file_uuid = $2
+```
+
+### Trigger
+- `GET /api/v1/file/:uuid/chunk/:chunk_id` → 500 "column uuid does not exist"
+- `POST /api/v1/search/universal` → same error (internally calls this function)
+
+---
+
+## Bug 4 (Observation): PG Has No Embeddings for M5 Charade
+
+M5's Charade data (`aeed71342a899fe4b4c57b7d41bcb692`) has 0 embeddings in PostgreSQL (all 4,188 sentence chunks have `embedding IS NULL`). Vectors are only in Qdrant.
+
+### Impact
+- `POST /api/v1/search/smart` returns empty results (requires `embedding IS NOT NULL`)
+- `POST /api/v1/search/universal` works (queries Qdrant)
+
+### M4 Workaround
+Demo script step 20 changed from `search/smart` to `search/universal` to show meaningful results.
+
+---
+
+## M5 Response
+
+All 4 bugs fixed and verified (37/37 API tests ✅):
+
+| # | Bug | Fix | Status |
+|:-:|-----|-----|:------:|
+| 1 | `dev.chunks` refs | 4 files updated: `postgres_db.rs`, `five_w1h_agent_api.rs`, `processor.rs`, `job_worker.rs` | ✅ |
+| 2 | `search_path` missing `public` | `postgres_db.rs:745` — `SET search_path TO dev, public` | ✅ |
+| 3 | `uuid` vs `file_uuid` | `postgres_db.rs:2777` — `/* ... */ AND file_uuid = $2` with `file_uuid as uuid` alias | ✅ |
+| 4 | PG embeddings empty | Confirmed design choice — vectors in Qdrant only. `search/universal` works. | ⚠️ By design |
+
+New source bundle updated at `docs_v1.0/M4_HANDOVER/momentry_core_v1.0.2_source.tar.gz`.
--- a/docs_v1.0/M4_workspace/2026-05-11_chunk_detail_endpoint.md
+++ b/docs_v1.0/M4_workspace/2026-05-11_chunk_detail_endpoint.md
@@ -0,0 +1,70 @@
+# API Report: Missing Chunk Detail Endpoint
+
+**Date**: 2026-05-11
+**From**: M4 (Integration & Testing)
+**To**: M5 (Development)
+**Priority**: Medium
+
+---
+
+## Issue
+
+Portal's `ChunkDetailView` needs to fetch a single chunk by `file_uuid` + `chunk_id`. Currently no dedicated endpoint exists for this.
+
+## Proposed Endpoint
+
+```
+GET /api/v1/file/:file_uuid/chunk/:chunk_id
+```
+
+- Method: `GET`
+- Path params: `file_uuid` (String), `chunk_id` (String)
+- Response: Single `Chunk` object (same structure as chunk items in search results)
+
+## Existing Building Block
+
+The DB-layer method already exists:
+
+```rust
+// src/core/db/postgres_db.rs:2770
+pub async fn get_chunk_by_chunk_id_and_uuid(
+    &self,
+    chunk_id: &str,
+    uuid: &str,
+) -> Result<Option<Chunk>>
+```
+
+Currently only used internally by the search handler (`server.rs:1494, 1534`). Only a route + handler wrapper is needed.
+
+## Why Not the Old `/file/:uuid/chunks` Endpoint
+
+The old endpoint returned ALL chunks for a file, and the portal filtered client-side. This is inefficient. The new single-chunk endpoint replaces it cleanly.
+
+## Portal Impact
+
+`portal/src/views/ChunkDetailView.vue:245` currently calls:
+```
+GET /api/v1/file/{uuid}/chunks  → filters client-side by chunk_id
+```
+Will switch to:
+```
+GET /api/v1/file/{uuid}/chunk/{chunk_id}  → direct single result
+```
+
+## Temporary Workaround (M4 Only)
+
+M4 has temporarily re-added `GET /api/v1/file/:file_uuid/chunks` for portal compatibility. This will be removed once the new endpoint is available.
+
+## M5 Response
+
+**Status**: ✅ Implemented
+
+**Endpoint**: `GET /api/v1/file/:file_uuid/chunk/:chunk_id`
+
+**Verified**:
+- `0-01` → 200 (corrected chunk)
+- `1446-01` → 200 (corrected chunk)  
+- `story_240` → 200 (story chunk)
+- `nonexistent` → 404
+
+M4 can remove the temporary workaround (`/file/:uuid/chunks`) and switch Portal to use this endpoint.
--- a/src/api/five_w1h_agent_api.rs
+++ b/src/api/five_w1h_agent_api.rs
@@ -776,7 +776,7 @@ pub async fn run_5w1h_agent(db: &PostgresDb, file_uuid: &str) -> anyhow::Result<
        match embedder.embed_document(text).await {
            Ok(vector) => {
                if let Err(e) = sqlx::query(
-                    "UPDATE dev.chunks SET embedding = $1::vector WHERE chunk_id = $2 AND file_uuid = $3"
+                    "UPDATE dev.chunk SET embedding = $1::vector WHERE chunk_id = $2 AND file_uuid = $3"
                )
                .bind(&vector as &[f32])
                .bind(chunk_id)
--- a/src/api/server.rs
+++ b/src/api/server.rs
@@ -1306,6 +1306,25 @@ async fn trigger_processing(
    })))
 }

+async fn get_chunk_by_path(
+    Path((file_uuid, chunk_id)): Path<(String, String)>,
+    State(state): State<AppState>,
+) -> Result<Json<Chunk>, StatusCode> {
+    let chunk = state
+        .db
+        .get_chunk_by_chunk_id_and_uuid(&chunk_id, &file_uuid)
+        .await
+        .map_err(|_| {
+            tracing::error!("[get_chunk_by_path] DB error: {}:{}", file_uuid, chunk_id);
+            StatusCode::INTERNAL_SERVER_ERROR
+        })?
+        .ok_or_else(|| {
+            tracing::warn!("[get_chunk_by_path] Not found: {}:{}", file_uuid, chunk_id);
+            StatusCode::NOT_FOUND
+        })?;
+    Ok(Json(chunk))
+}
+
 async fn get_asset_status(
    State(state): State<AppState>,
    Path(uuid): Path<String>,
@@ -2508,6 +2527,7 @@ pub async fn start_server(host: &str, port: u16) -> anyhow::Result<()> {
        .route("/api/v1/files/scan", get(scan_files))
        .route("/api/v1/file/:file_uuid/probe", get(probe_by_uuid))
        .route("/api/v1/file/:file_uuid/process", post(trigger_processing))
+        .route("/api/v1/file/:file_uuid/chunk/:chunk_id", get(get_chunk_by_path))

        .route("/api/v1/progress/:uuid", get(get_progress))
        .route("/api/v1/jobs", get(list_jobs))
--- a/src/core/db/postgres_db.rs
+++ b/src/core/db/postgres_db.rs
@@ -741,8 +741,8 @@ impl PostgresDb {
                let schema = schema.to_string();
                tracing::debug!("after_connect: setting search_path to {}", schema);
                Box::pin(async move {
-                    // Always set search_path explicitly to avoid using default "dev, public"
-                    sqlx::query(&format!("SET search_path TO {}", schema))
+                    // Include public schema for pgvector extension
+                    sqlx::query(&format!("SET search_path TO {}, public", schema))
                        .execute(conn)
                        .await?;
                    Ok(())
@@ -2774,7 +2774,7 @@ impl PostgresDb {
    ) -> Result<Option<Chunk>> {
        let table = "dev.chunk";
        let row = sqlx::query(&format!(
-            "SELECT COALESCE(file_id, 0) as file_id, uuid, chunk_id, chunk_type, COALESCE(fps, 24.0) as fps, COALESCE(start_frame, 0) as start_frame, COALESCE(end_frame, 0) as end_frame, text_content, content, metadata, vector_id, COALESCE(frame_count, 0) as frame_count, pre_chunk_ids, parent_chunk_id, child_chunk_ids, visual_stats FROM {} WHERE chunk_id = $1 AND uuid = $2",
+            "SELECT COALESCE(file_id, 0) as file_id, file_uuid, chunk_id, chunk_type, COALESCE(fps, 24.0) as fps, COALESCE(start_frame, 0) as start_frame, COALESCE(end_frame, 0) as end_frame, text_content, content, metadata, vector_id, COALESCE(frame_count, 0) as frame_count, pre_chunk_ids, parent_chunk_id, child_chunk_ids, visual_stats FROM {} WHERE chunk_id = $1 AND file_uuid = $2",
            table
        ))
            .bind(chunk_id)
@@ -2821,7 +2821,7 @@ impl PostgresDb {

            Ok(Some(Chunk {
                file_id,
-                uuid: r.get("uuid"),
+                uuid: r.get("file_uuid"),
                chunk_id: r.get("chunk_id"),

                chunk_type,
@@ -4623,7 +4623,7 @@ impl PostgresDb {
                COALESCE(summary_text, text_content, '') as summary,
                metadata,
                (1 - (embedding <=> $1::vector)) as similarity
-            FROM dev.chunks
+            FROM dev.chunk
            WHERE file_uuid = $2 AND chunk_type = 'cut' AND embedding IS NOT NULL
            ORDER BY embedding <=> $1::vector
            LIMIT $3
--- a/src/worker/job_worker.rs
+++ b/src/worker/job_worker.rs
@@ -1002,7 +1002,7 @@ impl JobWorker {
        let pool = db.pool();

        let rows = sqlx::query_as::<_, (String, String, String, f64, f64, String)>(
-            "SELECT chunk_id, chunk_type, text_content, start_time, end_time, content::text FROM dev.chunks WHERE file_uuid = $1 AND chunk_type = 'sentence' AND embedding IS NULL AND (text_content IS NOT NULL AND text_content != '') ORDER BY chunk_index",
+            "SELECT chunk_id, chunk_type, text_content, start_time, end_time, content::text FROM dev.chunk WHERE file_uuid = $1 AND chunk_type = 'sentence' AND embedding IS NULL AND (text_content IS NOT NULL AND text_content != '') ORDER BY id",
        )
        .bind(uuid)
        .fetch_all(pool)
--- a/src/worker/processor.rs
+++ b/src/worker/processor.rs
@@ -1080,7 +1080,7 @@ impl ProcessorPool {
                "top_5": scene.top_5,
            });
            let _ = sqlx::query(
-                "UPDATE dev.chunks SET metadata = metadata || $1::jsonb WHERE file_uuid=$2 AND chunk_id=$3"
+                "UPDATE dev.chunk SET metadata = metadata || $1::jsonb WHERE file_uuid=$2 AND chunk_id=$3"
            )
            .bind(&meta)
            .bind(uuid)