- indicator_summary_job.py imported its own copies of _month_spend and
_latest_quotes_by_group; _market_context.py already exposes these.
Switched to the canonical imports. Also fixed _market_context's
latest_quotes_by_group to actually filter null prices (it claimed to
in its docstring but lacked the WHERE clause).
- api.py duplicated REFERENCE_LINE as CHAT_REFERENCE_LINE — same string,
two sources of truth. Now imports REFERENCE_LINE.
- Chat endpoint used the deprecated `call_openrouter` alias and passed
an explicit `model=` that bypassed the provider chain. Switched to
`call_llm` with default model selection, then removed the alias.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
