fix: backfill symbol_demand for sidebar-added symbols + analyst ratings schema fix

- Add await ctx.cache.subscribe() to addSymbol mutation so symbols
  added via the sidebar get registered in symbol_demand and yfinance
  jobs are queued immediately
- Backfill PEP, WYNN, STZ, CELH into symbol_demand + adapter_queue
- Upgrade yahoo-finance2 3.15.3 -> 3.15.4 and pass validateResult:false
  to quoteSummary() to handle Yahoo schema drift
- Add error detail logging for analyst ratings schema failures
- Update .gitignore with common ignores

.automaton/loops/investor-flow-drain/loop-orchestrate.md

@@ -0,0 +1,11 @@
+You are the orchestrator for task **{current_task}**.
+
+Review the verifier's output. If it passed, transition the task to complete:
+```
+python3 ~/.automaton/scripts/status.py --transition complete --task {current_task} --project .
+```
+
+If it failed, mark it back to implement for fixes:
+```
+python3 ~/.automaton/scripts/status.py --transition implement --task {current_task} --project .
+```