refactor: centralize port config + fix 8082 conflict

- Add EMBED_URL, OLLAMA_URL, LLM_HEALTH_URL to config.rs
- Fix health.rs hardcoded ports → config references
- Fix sync_db.rs Ollama URL → config::OLLAMA_URL
- Create config/port_registry.tsv (single source of truth for ports)
- Remove Caddy 8082 proxy block (port belongs to LLM)
- Fix .env LLM_URL: localhost → 127.0.0.1 (avoid IPv6 Caddy conflict)

src/core/config.rs

@@ -132,6 +132,19 @@ pub static SYSTEM_TIMEZONE: Lazy<String> = Lazy::new(|| {
 pub static MONGODB_DATABASE: Lazy<String> =
     Lazy::new(|| env::var("MONGODB_DATABASE").unwrap_or_else(|_| "momentry".to_string()));
 
+pub static EMBED_URL: Lazy<String> =
+    Lazy::new(|| env::var("MOMENTRY_EMBED_URL").unwrap_or_else(|_| "http://localhost:11436".to_string()));
+
+pub static OLLAMA_URL: Lazy<String> =
+    Lazy::new(|| env::var("MOMENTRY_OLLAMA_URL").unwrap_or_else(|_| "http://localhost:11434".to_string()));
+
+/// LLM health endpoint derived from CHAT_URL.
+/// e.g. "http://127.0.0.1:8082/v1/chat/completions" → "http://127.0.0.1:8082/health"
+pub static LLM_HEALTH_URL: Lazy<String> = Lazy::new(|| {
+    let chat = llm::CHAT_URL.clone();
+    chat.trim_end_matches("/v1/chat/completions").to_string() + "/health"
+});
+
 pub static QDRANT_COLLECTION: Lazy<String> =
     Lazy::new(|| env::var("QDRANT_COLLECTION").unwrap_or_else(|_| "momentry_rule1".to_string()));
 
@@ -234,15 +247,11 @@ pub mod llm {
 
     /// Vision LLM endpoint (frame analysis, OCR). Can be same as CHAT_URL or different.
     /// Default: falls back to CHAT_URL
-    pub static VISION_URL: Lazy<String> = Lazy::new(|| {
-        env::var("MOMENTRY_LLM_VISION_URL")
-            .unwrap_or_else(|_| CHAT_URL.clone())
-    });
+    pub static VISION_URL: Lazy<String> =
+        Lazy::new(|| env::var("MOMENTRY_LLM_VISION_URL").unwrap_or_else(|_| CHAT_URL.clone()));
 
-    pub static VISION_MODEL: Lazy<String> = Lazy::new(|| {
-        env::var("MOMENTRY_LLM_VISION_MODEL")
-            .unwrap_or_else(|_| CHAT_MODEL.clone())
-    });
+    pub static VISION_MODEL: Lazy<String> =
+        Lazy::new(|| env::var("MOMENTRY_LLM_VISION_MODEL").unwrap_or_else(|_| CHAT_MODEL.clone()));
 
     /// Text summary LLM endpoint (5W1H, story). Can be same as CHAT_URL or different.
     pub static SUMMARY_URL: Lazy<String> = Lazy::new(|| {