fix(deps): link common platform workspace

docs/PRODUCTION_READINESS_HANDOFF_ROADMAP.md

@@ -80,7 +80,7 @@ If an item is intentionally deferred:
 Goal: establish a trustworthy starting point and avoid implementing against stale assumptions.
 
 - [x] **P0.1** Run `git status --short` and confirm the worktree is clean or identify user-owned changes. Commit: `fa30191`; Verified: `git status --short --branch` returned `## main...origin/main` with no modified or untracked files before production-readiness edits began.
-- [ ] **P0.2** Run `pnpm install --frozen-lockfile` if dependencies are not installed. Commit:
+- [x] **P0.2** Run `pnpm install --frozen-lockfile` if dependencies are not installed. Commit: `pending`; Verified: repaired stale common-platform workspace path from `../learning_ai_common_plat/packages/*` to `../learning_ai/learning_ai_common_plat/packages/*`, refreshed `pnpm-lock.yaml` against the local common-platform checkout, then `GITEA_NPM_TOKEN=dummy pnpm install --frozen-lockfile` passed. Notes: pnpm reported existing peer/build-script warnings for common-platform Azure Cosmos/Expo packages; these are baseline observations for later hardening.
 - [ ] **P0.3** Run baseline checks: `pnpm run typecheck`, `pnpm run test`, and `pnpm run build`. Commit:
 - [ ] **P0.4** Run targeted lint checks: `pnpm --filter @notelett/backend run lint`, `pnpm --filter @notelett/web run lint`, and `pnpm --filter @notelett/mobile run lint`. Commit:
 - [ ] **P0.5** Record any baseline failures in this document before fixing them. Commit:

pnpm-workspace.yaml

@@ -2,4 +2,4 @@ packages:
   - backend
   - web
   - mobile
-  - ../learning_ai_common_plat/packages/*
+  - ../learning_ai/learning_ai_common_plat/packages/*