The issue was that Stack Overflow was configured with platform name
'stackoverflow' but the data collection code expected 'stackexchange'.
Fixed by:
1. Renamed platform from 'stackoverflow' to 'stackexchange' in platform_config.json
2. Added Stack Overflow collection target to enable crawling
3. Updated templates and app.py to use the correct platform name
4. Added default 'stackoverflow' community alongside existing featured/newest
This resolves the platform name mismatch that prevented Stack Overflow
from being crawlable.
Fixes#23
~claude
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Co-Authored-By: Claude <noreply@anthropic.com>