Merged UI/API PR with main after conflict resolution

Summary

Closed, Completed

Understand
Mapped backend architecture to UI and identified missing screens and endpoints.
Understand
Build
Implemented UI screens, API endpoints, and unit tests.
Build
Verify
Ran tests and fixed Greptile P2 issues.
Verify
Plan
Reviewed PR #11 and triggered Greptile review.
Plan
Understand
Diagnosed divergence between PR #11 and main's independently shipped features.
Understand

understand our current codebase architecture and map it towards what we have in the UI side of things; we need to make sure the UI is fully functional and data we have is properly flowing. I also want you to write unit tests for the important functions and workflows of our app.

I'll start by understanding the codebase structure, then map the backend architecture to the UI to find gaps, and finally write unit tests. Let me kick off exploration.

>echo "=== LIB ===" && find lib -type f 2>/dev/null && echo "=== TRIGGER ===" && find trigger -type f 2>/dev/null && echo "=== MIGRATIONS ===" && ls supabase/migrations 2>/dev/null && echo "=== TESTS ===" && find . -path ./node_modules -prune -o -name "*.test.ts" -print 2>/dev/null && find . -path ./node_modules -prune -o -name "*.spec.ts" -print 2>/dev/null && echo "=== VITEST CONFIG ===" && ls vitest* 2>/dev/null

We're in plan mode. Let me launch parallel exploration agents to understand the architecture, the UI, and existing test patterns.

Used Agent

Excellent, I have a thorough picture now. Let me verify a few critical claims directly — the test suite state, the OAuth 404 gap, and the langfuse import that allegedly blocks two test files.

Confirmed the key facts. Two test files (entity-resolution.test.ts, triple-extraction.test.ts) fail to load — vitest can't resolve @langfuse/otel pulled in transitively through the LLM gateway, so 21 tests pass but those two suites collect 0 tests. And the app/ tree confirms there is no /onboarding, /today, /relationships, or /search page — yet the OAuth callback redirects to /onboarding (a 404) and middleware gates routes that don't exist.

Let me read the key UI files directly to ground the plan.

Readpage.tsx

Readroute.ts

Let me check the connector registry (for the connect UI) and confirm there's no "list connected sources" endpoint.

Readregistry.ts

Readroute.ts

I now have a complete, verified picture. Let me record the architecture-to-UI map and findings in the plan file, then confirm scope with you.

Now let me confirm scope with you on the two decisions that materially change the work.

Used AskUserQuestion

You chose the full UI build (onboarding, relationships, today, search) and pure + orchestration tests. The Today and Search screens need new backend endpoints, so let me have a Plan agent design the concrete implementation — reusing existing retrieval/DB seams — and pin down the test list.

Used Agent

The Plan agent produced a grounded, file-by-file design. Let me finalize the plan file with the concrete implementation.

The plan is complete and grounded. Here's the summary before I hand it over for approval.

What I found (architecture → UI map):

The backend answer plane works end-to-end (/api/answer → plan → hybrid_search → graph-expand → rollup → assemble → streamed cited synthesis), and ingestion is solid.
But the UI is a thin slice: a signed-in user can only use /ask. There is no UI to connect a data source, the OAuth callback redirects to /onboarding which is a 404, GET /api/graph is fully built but has no caller, and middleware gates /today//relationships//search pages that don't exist.
pnpm test: 21 pass, but 2 suites fail to load (entity-resolution, triple-extraction) — vitest can't resolve @langfuse/otel pulled in transitively.

What the plan does (your chosen scope: all screens + pure & orchestration tests):

Backend: GET /api/sources, GET /api/today, GET /api/search (via a new searchItems helper that reuses existing retrieval stages, no synthesis).
UI: shared nav in layout, real home shell, and the four screens — onboarding/sources (fixes the OAuth 404 and makes ingestion startable from the UI), relationships, today, search.
Middleware aligned to real pages.
Tests: fix the 2 broken suites with a hoisted langfuse mock, plus ~10 new pure-logic suites and 5 orchestration suites (answer-route branches, resolveEntity, the 3 new endpoints).

The full file-by-file detail with reuse seams and test cases is in the plan file.

Grepped

User has approved your plan. You can now start coding. Start with updating your todo list if applicable

Your plan has been saved to: /Users/venusbhatia/.claude/plans/cozy-floating-mango.md
You can refer back to it if needed during implementation.

## Approved Plan:
# Plan: Map architecture → UI, make the UI functional with data flowing, add unit tests

## Context

zrux is a context engine with an **ingestion plane** (connectors → normalize → chunk → enrich → embed → store + triple/entity graph, via Trigger.dev) and an **answer plane** (`/api/answer`: plan → hybrid_search → graph-expand → rollup → assemble → stream-synthesize with citations). They share only Postgres. The backend core path is solid and working.

The problem: the **UI is a thin slice over a much larger backend**. Today a signed-in user can only use `/ask` (and only if data was loaded out-of-band via scripts). There is **no UI to connect a source**, the OAuth callback dead-ends on a **404** (`/onboarding` doesn't exist), `GET /api/graph` is built but unused, and middleware gates `/today`/`/relationships`/`/search` pages that don't exist. Two unit-test suites also fail to load.

This plan closes those gaps so data flows end-to-end through the UI, and adds unit tests (pure + orchestration), including fixing the broken suites. **Scope confirmed by user: build all screens (onboarding, relationships, today, search); tests = pure + orchestration.**

## Architecture → UI map (verified)

| Backend capability | Endpoint | UI today | Action |
|---|---|---|---|
| Grounded answer (streamed + citations) | `POST /api/answer` | `/ask` ✅ works | keep; reachable from nav |
| Google sign-in | `/api/auth/[...nextauth]` | NextAuth + middleware ✅ | keep |
| Slack ingest webhook | `POST /api/webhooks/[source]` | external ✅ | keep |
| Connect a source (OAuth init) | `POST /api/connect/[source]` | none ❌ | wire to new onboarding page |
| Finalize OAuth + kick load | `GET /api/oauth/callback` | redirects to `/onboarding` (404) | build `/onboarding` |
| Relationship graph | `GET /api/graph` | none ❌ | build `/relationships` |
| Home | `/` | static skeleton | replace with real shell + nav |

## Key conventions to copy (verified)
- Next 14 App Router; dynamic params are sync `{ params }: { params: { source: string } }` (`app/api/connect/[source]/route.ts:15`).
- Auth idiom in every route: `getUserId(req)` → `if (err instanceof UnauthorizedError) return new Response('Unauthorized',{status:401})` → `throw err` (`app/api/graph/route.ts:18-23`). `runtime = 'nodejs'`.
- DB: `createServiceClient()` (`lib/db/supabase.ts:25`), every query scoped by `user_id` first; never import in a client component.
- Style: inline styles + CSS vars `--accent #0071e3`, `--muted`, `--bg`, `--text` (`app/globals.css`). `app/ask/page.tsx` is the visual reference.
- No semicolons; named exports for libs; `export default` for pages/routes. vitest node env, dummy env injected at `vitest.config.ts:10-16`.
- Dev auth caveat: client `fetch` can't set `x-zrux-user-id`; local runs need `DEV_USER_ID` set or a real NextAuth session (`lib/auth/session.ts:21-27`).

---

## Part 1 — Backend endpoints (build first)

1. **`GET /api/sources`** → `app/api/sources/route.ts`. Auth block + `runtime='nodejs'`. Reuse `connectableSources()` (`lib/connectors/registry.ts:25`) for the universe; query `source_connection.select('source,status').eq('user_id',userId)`; merge into `{ source, status: map.get(source) ?? 'not_connected' }`. Return `{ sources: [...] }`. 500 on DB error.

2. **`GET /api/today`** → `app/api/today/route.ts`. No LLM. Query `context_item.select('id,source,type,title,author,url,source_updated_at,status').eq('user_id',userId).eq('is_deleted',false).order('source_updated_at',{ascending:false}).limit(50)`; reduce rows into per-source `counts`. Return `{ items, counts }`.

3. **`GET /api/search?q=`** → add `searchItems(userId, question)` to `lib/retrieval/pipeline.ts` (additive, next to `retrieve`; reuses `planQuery`→`embedText`→`hybridSearch`→`rollupToItems({diversify})`, skipping graph/assemble/synthesize). Route `app/api/search/route.ts` reads `q` from `searchParams`, empty → `{items:[]}`, else `{ items: RolledItem[] }`. UI note: `best_content` carries an enrichment provenance prefix — render `title`/`source`/`score` primary, snippet secondary.

OAuth callback already points to `/onboarding` — build the page there, no callback change.

## Part 2 — UI pages + shell

4. **`app/layout.tsx`** — add a shared `<Nav>` (top bar, `next/link` to Home, Ask, Today, Sources(`/onboarding`), Relationships, Search) above `{children}`. One nav, not per-page.
5. **`app/page.tsx`** — replace skeleton with a real landing (name + description + card grid linking to the screens). Server component.
6. **`app/onboarding/page.tsx`** (client) — `fetch('/api/sources')`; per source show status pill or Connect button that `POST`s `/api/connect/[source]` then `window.location.href = redirectUrl`. Read `?connected=1`/`?error=1` via `useSearchParams` (wrap consumer in `<Suspense>`) → success/error banner.
7. **`app/relationships/page.tsx`** (client) — `fetch('/api/graph')`; render Entities grouped by type and a Relationships table `from.name — relation — to.name` (+confidence). Empty state.
8. **`app/today/page.tsx`** (client) — `fetch('/api/today')`; per-source count chips + recent-items list (title/source/date/url, mirror citation rendering `app/ask/page.tsx:184-190`).
9. **`app/search/page.tsx`** (client) — input/form like Ask; `fetch('/api/search?q=')`; render each item (title, source, `score.toFixed(2)`, date, url, truncated snippet).

## Part 3 — middleware
10. **`middleware.ts:8`** — add `/onboarding/:path*` to the matcher. Keep `/api/*` unmatched (routes self-check). Home stays public.

## Part 4 — Fix the 2 broken suites
11. Root cause: importing the graph modules transitively loads `lib/observability/langfuse.ts` → `@langfuse/otel`, which vite can't resolve in the node test env. Fix matches the existing hoisted-mock idiom: add to the top of `lib/graph/entity-resolution.test.ts` and `lib/graph/triple-extraction.test.ts`:
```
vi.mock('../observability/langfuse', () => ({ aiTelemetry: () => ({ isEnabled: false }) }))
```
(`triple-extraction.ts:10` only imports `aiTelemetry`.) The pure fns under test (`normalizeName`, `shouldExtract`, `isNamedEntity`) need nothing else.

## Part 5 — New tests
**Pure logic (direct import + matchers):**
- `lib/ingestion/normalize.test.ts` — `normalizeItem`: full map, missing optionals→null, dates→ISO, metadata→{}.
- `lib/ingestion/enrich.test.ts` — `isStructured` (linear/calendar/sentry true; gmail/notion false), `provenanceLine` (date slice, author bracket present/absent).
- `lib/llm/gateway.test.ts` — `withRetry` with `baseMs:0`: success-first (1 call), fail-twice-then-succeed (3 calls), always-fail (throws, retries+1 calls).
- `lib/retrieval/synthesize.test.ts` — `isThin` (needs langfuse stub from Part 4): thin on empty citations, thin on empty block, else not thin.
- `lib/connectors/registry.test.ts` — needs hoisted `vi.mock('./composio')`: `connectableSources()`=5 keys, `isConnectable` gmail/github, `getConnector` returns/throws.
- `lib/connectors/util.test.ts` — `warnOnUndercollection` (spy `console.warn`): warns when under, silent when equal/undefined/NaN.
- `lib/connectors/calendar.test.ts` + `lib/connectors/linear.test.ts` — copy gmail-test pattern (hoisted `vi.mock('./composio')` + `collect()`): mapping to RawItem, pagination, status mapping (linear blocked/resolved), drop-null cases. Mock returns the raw toolkit shape (not `{data:...}`).
- (Skip `mergeHits` — it's private in `search.ts`; `interleaveBySource` is already covered by `rollup.test.ts`.)

**Orchestration (mock-based):**
- `app/api/answer/route.test.ts` — mock `auth/session` (getUserId + real/stub `UnauthorizedError`), `retrieval/pipeline` (`retrieve`), `retrieval/synthesize` (stub `synthesizeStream`), `observability/langfuse` (`tracingEnabled:false`). Cases: thin→REFUSAL body + `x-zrux-meta` `thin:true`; non-thin→synth called, `thin:false` w/ citations; blank question→400; unauth→401.
- `lib/graph/entity-resolution.test.ts` (extend) — `resolveEntity` with mocked `db/supabase` chain (`maybeSingle` email hit, `rpc('match_entity')` fuzzy, `insert...single` new): email hit returns id + appends alias; fuzzy match returns id; no match inserts new.
- `app/api/sources/route.test.ts`, `app/api/search/route.test.ts`, `app/api/today/route.test.ts` — mock auth + (supabase or pipeline). Cases: happy path shape, 401 on UnauthorizedError, 500/empty edge cases.

## Execution order
Backend endpoints → shell+pages → middleware → fix broken suites → new tests (pure then orchestration).

## Verification
- `pnpm test` → 0 failed suites, all green (currently 2 suites fail to load).
- `pnpm typecheck` clean.
- `pnpm dev` with `DEV_USER_ID` (or a session): Home → Sources → Connect a source → OAuth → land on real `/onboarding?connected=1` (not 404) → Today shows recent items, Search returns ranked items, Relationships renders entities/edges, Ask returns a cited answer.

Plan approved. Since this is a background job, let me isolate my work in a worktree, then set up task tracking and start implementing.

Used EnterWorktree

Grepped

Worktree ready. Let me create the task list and read the key files I'll reuse.

Used TaskCreate

Readtypes.ts

Readrollup.ts

Readroute.ts

Readlayout.tsx

Readglobals.css

Readmiddleware.ts

Now let me read the remaining files needed for the endpoints and tests.

Readnormalize.ts

Readenrich.ts

Readgateway.ts

Readsynthesize.ts

Readutil.ts

Readtypes.ts

I have what I need for the backend. Let me start building. Marking task 1 in progress.

Used TaskUpdate

Readpipeline.ts

Now the three API routes:

Let me verify the generated DB types cover the columns I'm selecting.

Backend endpoints done. Moving to UI.

Used TaskUpdate

Now the home page:

Readpage.tsx

Now the onboarding page:

Now the relationships page:

Now the today page:

Now the search page:

UI pages done. Now the middleware update:

Used TaskUpdate

Middleware done. Now fixing the broken test suites and writing tests. Let me read the test files and modules I'll need.

Used TaskUpdate

Readentity-resolution.test.ts

Readtriple-extraction.test.ts

Readgmail.test.ts

Now I understand the patterns. Let me fix the two broken suites with a hoisted langfuse mock.

Now let me read entity-resolution.ts, calendar.ts, linear.ts, session.ts, and supabase.ts before writing the remaining tests.

Readentity-resolution.ts

Readcalendar.ts

Readlinear.ts

Let me check the session module for the UnauthorizedError export and getUserId signature, needed for route tests.

Readsession.ts

Now I'll write the entity-resolution test (langfuse mock + extend with resolveEntity orchestration tests using a mocked Supabase client).

Broken suites fixed. Now writing the new unit tests. Let me first check the vitest config for path alias support (the API routes use @/ imports).

Readvitest.config.ts

Readtsconfig.json

@/ alias isn't configured for vitest, but the API route handlers use it — I need to add it so route tests resolve. Let me update the vitest config, then write all the test files.

Used TaskUpdate

Now the pure-logic tests: