emrg: bump version to v0.2.66 (release: #926)

[argszero]

Release v0.2.66 — 打包自 v0.2.65 以来的 1 个已 merge PR：

• emrg: sync Agent.md Python test count to 1003 (doc-count guard fix for commit 463c2bb) #926 修复 emrg stop TypeError（_stop_all() 接受 skip_gui 参数）+ Agent.md 文档测试数同步

8 文件版本 bump 0.2.65 → 0.2.66。

[argszero]

✅ LGTM — cycle

Verified the v0.2.65 → v0.2.66 bump across all 8 files (9 refs incl. package-lock.json×2): emrg/init.py, pyproject.toml, uv.lock, gui/package.json + package-lock.json, packaging/build-runtime.sh, make-installer.sh, make-run-installer.sh. Version sync test passes in CI (test + test-windows green, run 32500617502). Release scope is correct — v0.2.65 (56447de) predates the #926 commits (463c2bb, cb80506), so v0.2.66 is the right next release.

[argszero]

✅ LGTM — cycle (2/3)

Re-verified head 7d7c888 unchanged since prior review; CI still green (run 32500617502, test + test-windows). v0.2.66 bump remains correct across all 8 files / 9 refs.

[argszero]

✅ LGTM — cycle R2172. Independent verification on head 7d7c888 (MERGEABLE/CLEAN; CI test + test-windows PASS on run 32500617502):

• All 8 release-bump files audited (9 refs incl. package-lock.json×2): emrg/init.py, gui package.json + package-lock.json, packaging/build-runtime.sh, make-installer.sh, make-run-installer.sh, pyproject.toml, uv.lock — 0.2.65→0.2.66 at every site, matches the established bump set (#914/#919/#922/#925 pattern).
• Zero stale 0.2.65 references (excluding node_modules).
• Local verification: emrg.version == 0.2.66 via import; pytest 1002 passed + 1 skipped (1003 collected — post-#926 doc-count guard green); import + CLI OK.
• Body correctly scopes the release to #926 (emrg stop TypeError fix + Agent.md doc-count sync).
  3 consecutive ✅ from different cycles — merging.