Add repeatable verification and establish fresh save checkpoint

Consolidate current readiness and existing rule decisions, preserve selective
subagents and automatic verified Git pushes, and record the efficiency pilot.
Add source-bound compact checks, private saved-game snapshots/online backups,
and bounded HTTP seat-restoration checks with 15 meaningful regressions.

At the user's explicit request, archive and clear 3,644 old local rooms and
related records while retaining schema/migrations; preserve future games from
a fresh empty baseline. Private backups and credentials are outside Git.

Validation: npm run check passes types, lint and all 4,177 offline tests.
Full report: 20260913-efficiency-check-3, 130.147 seconds; source fingerprint
344ce1d44475b0cd4ff10a915f28331cb4e2fcacbc7595636fbaa645c0568f64.
Two earlier broad attempts stopped at new type/lint errors before tests;
both were fixed. Independent review found cancellation falsely passing;
SIGINT/SIGTERM regressions and review confirm the fix. Documentation links,
example test selection, private backup integrity and empty baseline verified.
No app/build/dependency/HTTP implementation changed; no production build,
HTTP suite, browser acceptance or AI calibration claimed for this checkpoint.
The full game goal and existing release gates remain unfinished.

README.md

@@ -1,6 +1,6 @@
 # Dune — Arrakis Table
 
-An unofficial multiplayer adaptation of Gale Force Nine’s classic 2019 Dune, built with React, TypeScript, Vinext, and Cloudflare Workers/D1. **Development is ongoing; this is not yet a complete rules implementation.** Advanced and unfinished expansion starts remain disabled. See [implementation status](docs/IMPLEMENTATION_STATUS.md) for implemented systems, evidence, outstanding rules questions and release gates.
+An unofficial multiplayer adaptation of Gale Force Nine’s classic 2019 Dune, built with React, TypeScript, Vinext, and Cloudflare Workers/D1. **Development is ongoing; this is not yet a complete rules implementation.** Advanced and unfinished expansion starts remain disabled. Start with [current status](docs/CURRENT_STATUS.md) for implemented systems, remaining requirements and release gates; detailed historical evidence remains in the [implementation log](docs/IMPLEMENTATION_STATUS.md).
 
 ## Run locally
 
@@ -31,7 +31,7 @@ An uncertain saved-kit recovery keeps its exact retry details in memory and prev
 ## Verify changes
 
 Use the [development guide](docs/DEVELOPMENT.md) for architecture, focused tests
-and the verification workflow. Tests are discovered automatically; the default
+and the [repeatable verification tools](docs/VERIFICATION_WORKFLOW.md). Tests are discovered automatically; the default
 suite includes in-memory persistence recovery and needs no server:
 
 ```sh
@@ -57,6 +57,8 @@ See [AI calibration](docs/AI_CALIBRATION.md), [multiplayer audit](docs/MULTIPLAY
 
 ## Development maintenance
 
+The user-authorized 13 September 2026 local reset established a fresh saved-game baseline; see the [reset record](docs/VERIFICATION_WORKFLOW.md#authorized-reset-13-september-2026). Preserve all games created after that checkpoint.
+
 During active development, preserve database state and perform a controlled server restart approximately hourly. Warn before interrupting human play and defer until a safe decision point. Verify server health and restoration afterward. No recurring automation is installed; the user requested leaving it removed. Fix causes of crashes and lost progress rather than relying on restarts.
 
 The application bundles its artwork, fonts and rules guidance. Source provenance and third-party notices live in developer documentation; the player-facing reference uses internal links. Publication remains gated on completion and integrated verification of the requested rules, expansions and critical player journeys.