fix(mail): search every owned job

Replace ineffective pageSize=100 selectors with a bounded owner-filtered search endpoint for composing and moving linked threads.

docs/audits/verification-log.md

@@ -214,3 +214,4 @@ Output was reduced to filenames and commit counts. The token artifact appears un
 | V-180 | CV operation/store focused real-SQLite tests and full backend | Repository root | Keep dormant CV extraction history consistent with cancellation, deadline recovery and retry before worker claim | PASS — focused 17/17 and backend 660/660. Cancel sets the run terminal immediately, retry reopens it, deadline recovery fails it, and owner/task/subject predicates prevent unrelated updates | Synthetic rows only; no parser/model/MariaDB/production process interruption | AI-004 dormant-row consistency gap closed |
 | V-181 | AI usage meter/operation/workspace/export/deletion real-SQLite tests; EF model check; SQLite/MariaDB scripts; disposable SQLite backfill and fresh application startup; full backend | Repository root | Make Workspace and durable Strategy/CV usage owner-safe, idempotent and independent of deletable private history | PASS — focused 28/28 and backend 663/663; no pending model changes; both providers generate bounded additive DDL; SQLite backfills the synthetic legacy row exactly once; fresh runtime applies through `20260815175236_AddCrossFeatureAiUsage` and serves `/health` | Synthetic local rows only; no provider/model call, MariaDB server, production migration or worker activation. CV retains a conservative reservation and older synchronous AI paths are not yet universal | Main durable usage boundary implemented; remaining synchronous producers stay tracked under POL-001 |
 | V-182 | Real ASP.NET Identity data-protection token integration on SQLite; focused auth tests; full backend | Repository root | Close SEC-005B expiry/replay/custom-username proof without SMTP or production | PASS — valid confirmation succeeds once, replay and zero-lifetime expiry return the same generic failure, a real change-email token preserves a custom username and cannot replay; focused 39/39 and backend 666/666 | Synthetic addresses and ephemeral local data-protection keys only; no email, browser, MariaDB or production call | SEC-005B local token-state gap closed |
+| V-183 | Owner-filtered job-choice API test; correspondence Jest; frontend production build | Repository root / `job-tracker-ui` | Remove the email compose/thread-move selectors' false 100-job ceiling | PASS — backend search finds the oldest target among 130 owned rows and excludes another tenant; correspondence 20/20 proves debounced server search, compose selection and thread-move selection; TypeScript/production build passes | Synthetic rows/JSDOM only; no provider, email or production action | MAIL-001 exhaustive job selection gap closed |

docs/verification/mail-001-job-email-hub.md

@@ -179,7 +179,7 @@ Status: `IN PROGRESS`. Canonical hub routing, provider-neutral reads, explicit-c
 - Compose new email loads the authenticated user's recent job list and offers only connected providers that report send consent. Read-only/disconnected providers are absent from the selector and the send API still rechecks connection capability.
 - The job and provider selectors have explicit accessible labels. Missing jobs and missing send consent produce visible guidance instead of a non-explanatory disabled path.
 - Starting creates a blank local threadless draft; Save draft and Review and send reuse the same bounded persistence, UUID, revision conflict, confirmation and delivery paths as replies.
-- Focused inbox passes 13/13, full frontend 198/198 and production build pass. The hub selection is currently bounded to 100 recent owned jobs; this is recorded rather than presented as exhaustive.
+- The compose and linked-thread move selectors use an owner-filtered server search rather than pretending a large page size is exhaustive. Search evaluates all owned, non-deleted applications and returns bounded compact choices. Focused correspondence passes 20/20, the owner/isolation endpoint slice passes 4/4, and the production build passes.
 
 ## Remaining MAIL-001 work
 

docs/work-programmes/master-work-plan.md

@@ -668,7 +668,7 @@ This queue records the highest-value work that can proceed without production cr
 - **Blocker:** real provider/re-consent, full SEC-009 deletion, MariaDB, production and required 375/768/1440/theme/keyboard browser gates are unavailable or require new authority.
 - **Evidence:** `docs/verification/mail-001-job-email-hub.md`; V-126–V-153. Draft/new-message UI 13/13, API/idempotency/rotation 10/10, persistence 1/1 with dual-provider reversible SQL and readable export 4/4; Free send policy 7/7; provider states 9/9; hub unlink 8/8 UI and 2/2 API; shared application context focused 10/10; prior send export/cascade focused 16/16; recovery/send focused 10/10; legacy follow-up/worker 10/10; delivery/capability 18/18; provider/correspondence 5/5; hub detail 5/5; backend 630/630; frontend 50/50 suites and 198/198 tests plus build/audit; local empty/disconnected and compatibility-route browser smoke at 1280×720.
 - **Commit:** `6008b4a` (hub), `536d403` (neutral reads), `a20775c` (safe detail), `653f011` (ledger), `e9937ac` (Gmail/Graph delivery adapters and consent), `123fc55` (explicit-confirmed send API), `449faeb` (confirmed reply composer), `ee5ef7e` (interrupted-send recovery), `8fe3903` (legacy SMTP retirement), `aff34cc` (content-free export and cascade evidence), `ff547df` (shared application context), `1dabbeb` (confirmed hub unlink), `f9e641c` (honest provider states), `7f41cb2` (Free email policy regression), `14b396a` (inert tenant draft persistence), `2fa4e38` (owner-isolated readable draft export), `a9bb22e` (tenant-safe revisioned draft API), `80b5532` (persisted draft send identity), `d3d2b67` (saved reply recovery/conflicts), `29de263` (definitive-failure identity rotation), `b735963` (new-message job/provider drafting).
-- **Remaining work:** full account deletion remains SEC-009; provider mailbox category capabilities require separately authorized scopes/re-consent and remain absent; searchable selection beyond the 100 recent jobs; browser/production verification. Existing connections need explicit re-consent; IMAP remains read-only. No real email; uncertain sends need manual reconciliation. JT-019 blocks a clean full-chain SQLite rehearsal before the new draft migration.
+- **Remaining work:** full account deletion remains SEC-009; provider mailbox category capabilities require separately authorized scopes/re-consent and remain absent; browser/production verification. Server-side owner-filtered job choice search now reaches applications beyond the old first-page ceiling (V-183). Existing connections need explicit re-consent; IMAP remains read-only. No real email; uncertain sends need manual reconciliation. JT-019 blocks a clean full-chain SQLite rehearsal before the new draft migration.
 
 ### JOBS-001 — Job-search source and assessment redesign