[KM-686] Unwire Non-AI Routers from Main + Swagger

pr/5 Phase 1: comment out non-AI routers from main.py (imports +
include_router) so they're no longer mounted and drop off Swagger.
Router files are kept intact, just unwired — Go now owns these.

Unwired: users (login), document, room, db_client, data_catalog, analysis.
Kept mounted (AI surface): chat, report, tools.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

main.py

@@ -7,14 +7,17 @@ from src.middlewares.logging import configure_logging, get_logger
 from src.middlewares.cors import add_cors_middleware
 from src.middlewares.rate_limit import limiter, _rate_limit_exceeded_handler
 from slowapi.errors import RateLimitExceeded
-from src.api.v1.document import router as document_router
+# --- pr/5 Phase 1: unwire non-AI routers (Go owns these now). ---
+# Routers below are commented out, NOT deleted. The router files stay alive;
+# they're just not mounted, so they also disappear from Swagger.
+# from src.api.v1.document import router as document_router          # unwired: Go handles documents
+# from src.api.v1.room import router as room_router                  # unwired: replaced by analysis_id
+# from src.api.v1.users import router as users_router                # unwired: login moved off Python
+# from src.api.v1.db_client import router as db_client_router        # unwired: Go registers DB client
+# from src.api.v1.data_catalog import router as data_catalog_router  # unwired: Go handles the catalog
+# from src.api.v1.analysis import router as analysis_router          # unwired: Go owns create/update analysis
 from src.api.v1.chat import router as chat_router
-from src.api.v1.room import router as room_router
-from src.api.v1.users import router as users_router
-from src.api.v1.db_client import router as db_client_router
-from src.api.v1.data_catalog import router as data_catalog_router
 from src.api.v1.report import router as report_router
-from src.api.v1.analysis import router as analysis_router
 from src.api.v1.tools import router as tools_router
 from src.db.postgres.init_db import init_db
 import os
@@ -50,14 +53,15 @@ app.state.limiter = limiter
 app.add_exception_handler(RateLimitExceeded, _rate_limit_exceeded_handler)
 
 # Include routers
-app.include_router(users_router)
-app.include_router(document_router)
-app.include_router(room_router)
+# --- pr/5 Phase 1: AI-only surface. Non-AI routers unwired (Go owns them). ---
+# app.include_router(users_router)         # unwired: login moved off Python
+# app.include_router(document_router)      # unwired: Go handles documents
+# app.include_router(room_router)          # unwired: replaced by analysis_id
+# app.include_router(db_client_router)     # unwired: Go registers DB client
+# app.include_router(data_catalog_router)  # unwired: Go handles the catalog
+# app.include_router(analysis_router)      # unwired: Go owns create/update analysis
 app.include_router(chat_router)
-app.include_router(db_client_router)
-app.include_router(data_catalog_router)
 app.include_router(report_router)
-app.include_router(analysis_router)
 app.include_router(tools_router)