Bug: 'choices=configured_sources()' in argparse opened DB session at
import time, causing --help to fail when DB was unavailable.
Fix:
- Added STATIC_SOURCE_CHOICES list with known source keys
- argparse uses static choices — no DB required for --help
- fetch-community command now checks enabled status at runtime
- Disabled sources return error: 'source X is disabled or not configured'
- run_source still handles locked/cooling down state
Verification:
- CLI --help works without DB
- fetch-community --help shows all known sources
- Disabled sources are rejected at runtime with clear error
- 124/124 Python tests pass (1 skipped)
ik
ec3a1ca516