fix: dashboard search & pagination, drop content from list

[Alimedhat000]

Fixes #56

Problem

GET /document returned every owned+collaborated document with full content (Yjs mirror, unbounded), uncapped. Dashboard fetched GET /document with no query and rendered all docs with client-side sort only — no search, no pagination.

Verified in worktree fix/56-dashboard-search-pagination via code trace (document.controller.ts:139, document.router.ts:38, dashboard.tsx, dashboard-main.tsx) + node repro script. Server findMany had no select/take/skip, router had no validate(), client had no search/pagination.

Solution

Server

• add ListDocumentsQuerySchema (q? 1-100 trimmed, limit 1-50 default 20, offset >=0 default 0) — server/src/validations/documentParams.schema.ts
• getDocs now uses documentListSelect (omits content/versionCount), applies title contains mode:insensitive when q, and take/skip + parallel count for pagination: {limit, offset, totalOwned, totalCollaborated} — server/src/controllers/document.controller.ts
• wire validate({query: ListDocumentsQuerySchema}) on GET / — server/src/routers/document.router.ts
• update Swagger GET /document with query params and paginated response (additive: {owned, collaborated, pagination}) — server/swagger.yaml

Client

• dashboard route debounces search 300ms, resets offset on search, fetches GET /document?q&limit&offset, stores totals — client/src/app/routes/app/dashboard.tsx
• DashboardMain adds search input + prev/next pagination bar derived from server totals — client/src/features/Dashboard/components/DashboardMain/dashboard-main.tsx

Commits

1. fix(server): paginate getDocs, exclude content and add title search
2. feat(client): add dashboard search and pagination

Verification

• pnpm --filter server typecheck ✔ (after prisma generate)
• pnpm --filter client typecheck ✔
• pnpm lint ✔ (both packages)
• pnpm build ✔
• additive response keeps existing {owned, collaborated} shape — single-doc test (document.test.ts:60-73) remains compatible; single-doc editor still fetches full body via GET /document/:id

Notes

• pagination is limit/offset applied per bucket with shared offset; totals support proper paging. Cursor/virtualization out of scope as per issue acceptance.