emrg: bump version to v0.2.51 (release: #853 #854 #855)

[argszero]

Release v0.2.51 — version bump

Host release directive (rant 2026-08-19T00:06:15). Master already contains the feature work (c963005):

1. emrg: stop_all lock escalation + advisory residuals + classify rel-path fix (rant 2026-08-18T21:24:48) #853 — stop_all lock handling final: lock escalation (taskkill /F /T → parent process tree → Stop-Process) + advisory residuals (lock leftovers no longer abort install, recorded then continue) + classify rel-path fix — Windows installer DeleteFile code 5 root fix
2. emrg: process-name single-instance admission + codify server-integrity test red line (rants 2026-08-18T22:15:04/23:07:14) #854 — dual-instance elimination: process-name single-instance admission (a new instance exits itself if an earlier emrg.server is alive) + codified server-integrity test red line (never write stop/restart-server tests)
3. emrg: task recent-runs subtable + vibe-check done summary (rant 2026-08-18T21:32:32) #855 — vibe check now has the agent summarize what meaningful work was done + GUI task recent-runs accordion subtable
4. MANIFESTO.md + system.j2 carry the permanent red line: no stop/restart-server tests
5. tests/ stop-related tests rewritten as pure-logic mock versions per the red line (test_stop_all.py 917 lines, TestWsGracefulShutdown removed; test_daemon_manager_e2e.py trimmed)

Changes

Version bump 0.2.50 → 0.2.51 across 8 files / 9 refs (same set as the v0.2.50 bump #848): emrg/__init__.py, emrg/gui/package.json, emrg/gui/package-lock.json (2), pyproject.toml, uv.lock, packaging/build-runtime.sh, packaging/make-installer.sh, packaging/make-run-installer.sh. Version-sync guard verified statically (all 6 sources + shell fallbacks = 0.2.51).

Release actions after merge

• tag v0.2.51 → push → Build Release CI → GitHub Release (assets auto-uploaded)

Note

• Host temp local-test ban until 08-19 does not affect CI (runs on GitHub runners); CI runs the full suite.
• After release, host to verify Windows install (DeleteFile code 5 root-fix effect).

[argszero]

✅ LGTM — cycle. Version bump 0.2.50→0.2.51 across 8 files/9 refs (matches #848 set); version-sync guard verified statically (emrg.init / pyproject / gui package.json / uv.lock / 3 shell fallbacks all = 0.2.51); CI test + test-windows PASS (run 32158758890).

[argszero]

✅ LGTM — cycle (2/3). Re-verified head 8059f43 unchanged, diff = pure version bump 0.2.50→0.2.51 (9 refs across 8 files, no historical-comment collateral); CI test + test-windows PASS (run 32158758890); version-sync guard static-verified.

[argszero]

✅ LGTM — cycle (3/3). Merge gate satisfied: 3 consecutive LGTMs from different cycles, no ❌. Head 8059f43 unchanged, CI test + test-windows PASS, mergeState CLEAN.