test: fix ambiguous model resolution test and migration conflicts

src/lib/db/migrations/041_compression_tokens.sql

@@ -1,4 +0,0 @@
--- Migration 041: Add tokens_compressed to call_logs
--- Tracks how many tokens were removed by proactive context compression.
--- NULL = compression not applied. N > 0 = tokens eliminated.
-ALTER TABLE call_logs ADD COLUMN tokens_compressed INTEGER DEFAULT NULL;