docs: note start of marketing + finances extraction to dedicated apps (prospector pattern)

- Updated docs/prospector.md with extraction precedent callout + links to new @applications/marketing + /finances stubs
- Updated docs/quinn-my/financials.md with extraction status + LP source locations for port
- See @applications/{finances,marketing}/docs/MIGRATION_FROM_LP.md for full plans

docs/prospector.md

@@ -30,4 +30,6 @@
 
 Work in this area must read/use the plans/handoffs above. Update them + this doc as status changes.
 
-See root CLAUDE.md for broader protocols (use plans, collective voice, scoped commits, etc.).
+See root CLAUDE.md for broader protocols (use plans, collective voice, scoped commits, etc.).
+
+**Extraction pattern precedent (2026-06-29)**: Prospector monolith->dedicated extraction (to @applications/prospector) now extended to marketing (outreach batches) and finances. Dedicated homes: @applications/marketing/ and @applications/finances/ . Their docs/MIGRATION_FROM_LP.md + definition docs capture the targets in LP (api/entities/outreach-*, surfaces/my/outreach + financials/*, my/frontend pages, mcp). LP provides compat proxies while new apps take over. Update quinn-my/ docs and platform references as phases progress.

docs/quinn-my/financials.md

@@ -144,3 +144,6 @@ Week boundaries: Monday–Sunday UTC. Month prefix: `YYYY-MM`.
 - `income_meta` uses an upsert on `id = 1` — only one row ever exists. `PUT /api/financials/roi/meta` and `PUT /api/financials/savings` both upsert the same row but update different columns; partial updates preserve the other columns via the `ON CONFLICT DO UPDATE SET` pattern.
 - Purchases have a nullable `status` field (no enforced enum); subscriptions have a freeform `type` field (also no enum). Only income sessions have a strict type enum.
 - Session update uses `null` sentinel correctly: if `projectId` or `clientId` is explicitly passed as `null` in the body, it is stored as NULL (nulling out the FK). If the key is absent from the body, the existing value is preserved.
+
+**Extraction in progress (2026-06-29)**: The financials domain is being extracted to a dedicated `@applications/finances` app (Nest + PWA + MCP + own DB) following the prospector pattern. See `@applications/finances/docs/MIGRATION_FROM_LP.md` + `docs/FINANCES.md`. During transition, LP surfaces remain; new dedicated app at its own origin (linkable as /finances/app or proxied). Update this doc + my/ pages as cutover advances. LP code locations for port: api/entities/financials/*, surfaces/my/{financials,pending-income,...}, my/backend-api schema-financials, my/frontend financials pages/tabs.
+