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/WORKFLOW.md

@@ -0,0 +1,46 @@
+# Task Pool Workflow — Investor Flow
+
+## How Tasks Flow
+
+```
+new → research → implement → code_review → complete
+```
+
+## Canonical design docs
+
+- `docs/FUNCTIONAL_DESIGN.md` — product status
+- `docs/TECH_DESIGN.md` — technical status
+- `CONTEXT.md` — glossary only
+
+## Priority gap tasks (2026-07-18 audit)
+
+Pick in this order when available:
+
+1. **P0** `fix-macro-commentary-tests` — restore green suite
+2. **P0** `wire-sizing-risk-trpc-m20` — size + risk on tRPC + M20 UI
+3. **P1** `frontend-api-client-coverage` — unblock UI tasks
+4. **P1** `persist-trade-plan-execution-loop` — multi-tenant process loop
+5. **P1** `wire-emotion-logger-backend`
+6. **P2** strategy lab, screener UI, thesis/derisk UI, options convexity UI
+7. **P3** reports UI, schema strategies dedupe
+
+## For Agents
+
+```bash
+cd /Users/laptran/Documents/investor-flow
+python3 ~/.automaton/scripts/status.py --available --agent <your-name> --project .
+python3 ~/.automaton/scripts/status.py --claim --task <task-name> --agent <your-name> --project .
+# implement from SPEC.md
+python3 ~/.automaton/scripts/status.py --transition code_review --task <task-name> --project .
+```
+
+### Rules
+
+- ADR-0007: no unframed imperative trade verbs
+- Reviewer ≠ implementer
+- Backend tests: `cd app/server && npm test`
+- Primary-rule lint: `cd app && node --test --experimental-strip-types src/__tests__/primary-rule-lint.test.ts`
+
+## Historical note
+
+Many modules under `.automaton/tasks/complete/` are finished vertical slices. The old "21 task pool" table is obsolete; use the priority list above.