emrg: bump version to v0.2.67 (release: #930 #931 #932)

[argszero]

Release v0.2.67 — 打包自 v0.2.66 以来的 3 个已 merge PR：

• emrg: fix GUI sidebar layout — pin status dot to bottom, remove duplicate divider #930 GUI 侧栏布局修复（状态绿点固定底部 + 去重复分隔线）
• emrg: show running task elapsed duration + 5s status polling in GUI task panel #931 GUI 任务面板运行时长显示 + 5s 状态轮询
• emrg: fix open-session returning to session view + add GitHub issue path to promotion feedback #932 打开会话从面板返回会话视图 + promote 反馈提 GitHub issue 路径

8 文件版本 bump 0.2.66 → 0.2.67。

[argszero]

✅ LGTM — cycle 1254. Verified: 8 files, pure version bump 0.2.66 → 0.2.67 (9+/9-), CI green (test + test-windows, run 32546191389).

[argszero]

✅ LGTM — cycle 1255. Re-verified: 8 files, pure version bump 0.2.66 → 0.2.67 (9+/9-), CI green (test + test-windows, run 32546191389).

[argszero]

✅ LGTM — cycle 1256. Re-verified: 8 files, pure version bump 0.2.66 -> 0.2.67 (9+/9-), CI green (test + test-windows, run 32546191389), covers release of #930/#931/#932.

[pm25coder]

I tested this PR (v0.2.67 release train) locally against current master:

• Patch applies cleanly: 8 files, 9+/9- (pure version bump 0.2.66 → 0.2.67)
• import emrg; emrg.__version__ → 0.2.67
• Scanned all 8 bumped files for leftover 0.2.66 references → zero leftovers
• CI green (test + test-windows)

Consistent with previous release trains (#925, #928). No issues found.