[tt-a1i]

Problem

Release the changes merged to main since 1.1.0.

Value

Ships to npm users:

• feat: add on-demand semantic navigation skill #916: on-demand semantic-navigation Skill (local language server definitions, references, single-file diagnostics, before/after comparison); all three bundled Skills declared in the package manifest.
• feat(web): show observed context composition in session usage #914 / feat(web): preserve source identity in review and plan references #915: observed context composition in the Web session usage popover; review and plan references keep their source identity.
• feat(web): add trajectory overview and inspectors #868 / feat(web): refresh desktop workbench, themes, and model controls #894 / feat(web): polish workbench UI and reading experience #904 / feat(web): refine chat reading, execution feedback, and follow-up controls #865 / feat(web): configure thinking levels and align settings pages #864 / feat(web): 输入框按 ↑ 调出之前发过的消息 #912: Web trajectory overview and inspectors, refreshed workbench and themes, per-model thinking levels, and ↑/↓ prompt history in the composer.
• fix(ai-providers): rewrite const schema literals as enum for Cloud Code Assist #905 / fix(web): 长回答的实时消息按 SSE 字节预算裁剪，不再反复重连 #854 / fix(runtime): 共享子执行准入池，并在中断时释放已分配的槽位 #828 / fix(web): preserve session worktree executable bits under strict umask #911 / fix(web): stabilize session state and child/source navigation #892 / fix(web): harden recovery and preview reliability #893 / fix(subagents): Agent Type 的 name 写错时，同时屏蔽文件名对应的角色 #833 / fix: sanitize hidden terminal strings in web evidence #705 / fix(tui): avoid stacking editor layers on session start #741 / fix(usage): reject pre-cancelled quota waits #734 / fix(cursor): reject overflowing uint32 varints #749: fixes for the Antigravity const 400, SSE reconnect loops on long answers, shared child-execution admission, worktree executable bits, Web recovery, agent-type fallback, evidence sanitization, TUI editor layers, quota-wait cancellation and protobuf varints.
• perf: reduce child, workflow and long-session overhead #895 / perf(workflows): checkpoint 复用每个 agent 已编码的 transcript，不再全部重新序列化 #883: lower CPU, allocation and disk work in long sessions and workflow checkpoints.
• ci: verify Pi support endpoints and restore host compatibility #719 / test(persistence): document OpenPI sidecar compatibility boundary #902: minimum/latest Pi host CI coverage with compatibility restored; sidecar compatibility boundary documented.

Minor version because #916, #914, #915, #868, #864 and #912 add user-visible behavior without removing anything; published support ranges are unchanged.

Approach

package.json version 1.1.0 → 1.2.0, following RELEASING.md. The committed web/dist (app.js, build-info.json) is rebuilt with bun run build:web because the Web build now embeds the package version; CI rejects a stale web/dist. Tag v1.2.0 will be created at the merged commit.

Validation

Each included PR passed the required CI checks before merge; main CI is green at 923ec86. Locally at 923ec86: bun run check passed; bun run test Node 2,475 passed / 8 skipped / 0 failed, UI 1,647 passed. This PR changes only the version field and the regenerated build identity in web/dist.

Impact

• User-visible: package version 1.2.0; behavior changes are those listed in the included PRs.
• Model-visible context/tools, runtime/lifecycle, persisted config/data: none beyond the included PRs.
• Compatibility: no removals; published peer/support ranges unchanged.