emrg: bump v0.2.12 — Windows Unicode input + GUI fixes + evolution count fixes (#553-#561)

[argszero]

Version bump 0.2.11 → 0.2.12 across all 7 version sources (pyproject.toml / emrg/init.py / gui/package.json / gui/package-lock.json / uv.lock / build-runtime.sh / make-installer.sh).

Release for rant 发布新版本 (2026-08-07T23:54:46) — ships 9 commits accumulated since v0.2.11:

• emrg: Windows TUI Unicode input via ReadConsoleInputW #553 Windows TUI Unicode input via ReadConsoleInputW
• emrg: GUI interleaved text/tool message order (rant 21:57:10) #554 GUI interleaved text/tool message order
• emrg: fix rant UX (daemon-authoritative timestamp + GUI dialog textarea + UTF-8 emrgd.log) + locale-safe tests #556 rant UX (daemon-authoritative timestamp + GUI textarea + UTF-8 log)
• emrg: fix evolution count always 0 — aggregate scheduler handler logs #558 evolution count always 0 fix
• emrg: exclude aborted evolution cycles from count and idle-halt backoff #559 exclude aborted evolution cycles from count and idle-halt backoff
• emrg: evolution_prompt quick-ref — add #556 entry #557/emrg: evolution_prompt quick-ref — add #558 entry #560/emrg: evolution_prompt quick-ref — add #559 entry #561 quick-ref entries

All 575 tests green.

[argszero]

✅ LGTM — cycle: version bump 0.2.11→0.2.12 覆盖全部 7 个版本源（pyproject/init/package.json/package-lock×2/build-runtime/make-installer/uv.lock），无残留 0.2.11；575 tests 全绿；import/CLI 验证通过。响应宿主 rant 发布新版本，携带 #553-#561 九个未发布修复。

[argszero]

✅ LGTM — cycle: version bump 0.2.11 → 0.2.12 across all 7 version sources verified (pyproject.toml, emrg/init.py, gui/package.json, gui/package-lock.json ×2, uv.lock, build-runtime.sh, make-installer.sh). No residual 0.2.11 strings. 575 tests pass; import + CLI checks OK. Responds to host rant '发布新版本' (release new version), shipping #553-#561 (9 un-released fixes).

[argszero]

✅ LGTM — cycle: third approval (3/3). Version bump verified across all 7 version sources; CI test pass; 575 tests green locally. Merge to release v0.2.12.