feat: ASRX hybrid pipeline, identity history, worker fixes, checkpoint system

docs_v1.0/API_WORKSPACE/README.md

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+# API Workspace
+
+## Purpose
+
+This directory is the **single source of truth** for all API documentation modules.
+Generated outputs go to `../GUIDES/` as assembled deliverable documents.
+
+## Workflow
+
+```bash
+# 1. Edit a module
+vim modules/09_tmdb.md
+
+# 2. Preview the generated output
+make _build/API_ENDPOINTS.md
+
+# 3. Check diff against current GUIDES/ content
+make check
+
+# 4. Deploy to GUIDES/
+make deploy
+
+# 5. Regenerate all
+make all
+```
+
+## Directory Structure
+
+```
+API_WORKSPACE/
+├── modules/         ← 11 module files (01_auth ... 11_error_codes)
+├── configs/         ← 7 assembly recipies (.toml)
+├── narratives/      ← narrative intros for specific output files
+├── _build/          ← generated output (gitignored)
+├── Makefile         ← build targets
+├── assemble_docs.sh ← assembly engine
+└── README.md
+```
+
+## Available `make` Targets
+
+| Target | Output |
+|--------|--------|
+| `make reference` | `_build/API_REFERENCE.md` |
+| `make endpoints` | `_build/API_ENDPOINTS.md` |
+| `make quickref` | `_build/API_QUICK_REFERENCE.md` |
+| `make errors` | `_build/API_ERROR_CODES.md` |
+| `make index` | `_build/API_INDEX.md` |
+| `make marcom` | `_build/API_TRAINING_MARCOM.md` |
+| `make tmdb` | `_build/TMDb_User_Guide.md` |
+| `make all` | All of the above |
+| `make deploy` | Copy `_build/*` → `../GUIDES/` |
+| `make check` | `diff` against existing `../GUIDES/` files |
+
+## Adding a New Endpoint
+
+1. Add the endpoint to the appropriate module (e.g., `modules/XX_files.md`)
+2. Follow the template in `modules/_template.md`
+3. `make all && make check`
+4. `make deploy`