test: verify cross-member memory after server restart

[outlier27-cell]

Problem

The memory tests cover search, dispatch injection, and persistence separately, but lack a combined regression proving an approved member-originated memory reaches a different member after closing and reopening the server.

Value

This protects cross-member recall after restart and ensures inactive or foreign workspace guidance cannot enter that task's memory envelope. Without this coverage, a persistence/injection integration regression could escape the individual tests.

Approach

Add one real HTTP/SQLite/PTY regression. Fixture Alice contributes a candidate and it is approved through the existing store API. Reopen the same database, preserve source snapshots, authenticate Bob's HTTP search and the orchestrator's HTTP dispatch, and inspect the dispatch-specific memory envelope received by Bob's Node echo subprocess. Disabled, archived, unapproved, and foreign workspace records share the same search tag as exclusion controls.

This is test-only: the scenario passed against current main; no production defect was reproduced or fixed. Fixture writes do not test write authorization. It does not prove model comprehension, actual provider acceptance, or completion of the broader EverOS proposal.

Validation

• Memory API, prompt contract, and restart suites: 19 tests passed.
• After independent review narrowed assertions to the dispatch-specific envelope, the final restart test passed again.
• Biome on the new test, project check, build, and git diff check passed.
• Whole-project TypeScript noEmit failed with two TS2352 errors in unchanged tests/unit/workspace-shell-runtime.test.ts (lines 15 and 119); no error was reported in the new test. Production TypeScript compilation in build passed.
• Four independent reviews identified the same startup-versus-dispatch assertion issue; it was fixed and independently rechecked with no blockers.
• No full-suite claim.

Impact

No runtime, schema, dependency, or UI changes. References #6 without closing the broader issue.