v0.4.0

## Changelog
* 12e3c393d7e51df3040805b95c80ddbdcbcd0a73 Add auto-save confirmation toasts (#5261)
* 41b3045efa7599187f944b67cbd0eab438542a15 MUL-4424: bound Codex app-server startup RPCs (#5319)
* 3bd69bdaa2ec64d0a26db4308acf011f6eafc835 MUL-4432: add DM button on agent detail page (#5289)
* ab54c2be54f9f77930c7962309027384c444e756 MUL-4471: refresh workspace repos on demand (#5334)
* 69ad80688162ebfa33d454cea7306a070bcebb43 MUL-4472: fetch runtime profiles on demand
* 3a382d92b34d2203f45d0ab6b7d39fbe3478b593 Refine agent access scopes in create flow and inspector (#5269)
* 9a071b827fda15cb4dc8ba0d1acf5aafd51d879b Revert "fix(chat): correct unread — archived sessions + mount-race auto-read …" (#5332)
* d51a3cbbbda8f76876a399d86eb0d2c43e1f3375 Unify settings layout and auto-save (#5257)
* 014eb0496df249b17ad0abbe2e7f168d2b0a809a docs(changelog): v0.4.0 release notes (#5339)
* 1427e8abd3add9c5a54694238fac8117bba8743e feat(agents): add conversational creation studio (#5296)
* e1c65b016257cb39ad690079b8d04bafee084084 feat(agents): remove template entry from agent creation ModeChooser (MUL-4481) (#5343)
* 2affa34f767205426000c70b3bf7b28d6a507e68 feat(agents): two-level runtime picker on agent settings — machine, then runtime (MUL-4421) (#5276)
* a19e60a9e64156b9794350d0a6c44eb41aa4d7ab feat(chat): support images/files in agent chat replies (MUL-4287) (#5164)
* 8e1bf6cc51624a9bec90eb189e2ff77c4bb8f866 feat(desktop): merge active tab into content surface, Chrome-style (#5314)
* 53f05cca5efd9308b8be79711c37e1d78fbecf9e feat(github): fan out PR/check_suite webhooks to all bound workspaces (MUL-4343) (#5218)
* 80e54094a87f78c9d5d66af7bebac68bce04fe7c feat(issues): sticky setting for the issue comment bar (MUL-4435) (#5293)
* 835b1d5e4fa89dfc80243e0015ca1509ed11f53d feat(issues): thread quick-jump minimap on issue detail (MUL-4389) (#5234)
* c377d7fb4f4a101bce7548c91caa77a26fcca388 feat(labels): add scoped label management (#5279)
* bf288349f6791f700f627cd9f643c0d0a1e5c0e7 feat(project): add start_date and due_date fields (MUL-4388) (#5313)
* 47e3fdedd06ebe5c60eab12246740626b3293d03 feat(projects): start_date / due_date UI + create-project footer aligned with create-issue (MUL-4388) (#5331)
* b0133261d6249d311351cc5f4ab7298a9c8927f1 feat(settings): improve API tokens page guidance and token-created dialog (#5254)
* b72bd55d16ddb45f56572b9efa6060c60b93e4b9 feat(shortcuts): make browser-reserved accelerators recordable on desktop (#5327)
* 54b34f8ccdeab8add82e855790f678ba3d97e35f feat(skills): search runtime local skills (#5104)
* 4efcfb96e368af93be784e86c06e661dcdb63f84 feat(ui): establish surface system (#5248)
* d8165bac4e46cf9a6ffadef1447d7ebd8dfd431a feat(views): unify reply and comment send buttons to the circular chat style (#5288)
* b64ebd60b57c386242b4909dcc48d0adf5307784 feat: add customizable keyboard shortcuts (#5294)
* abeee82cd09a7cc5913fb7cd227ad9277abed2b0 feat: animate numeric metrics with NumberFlow (#5317)
* a14098288be4cc38cd664a79b482e08380113f55 feat: redesign agent Skills and MCP capabilities (#5277)
* eacc842280f2ee6719e3720a9d5c6a05aac92f24 fix(agents): constrain builder models to runtime (#5323)
* 05d929858237eeed3edac4df7329397181bf9c34 fix(agents): let workspace members view runtime capabilities (MUL-4427) (#5281)
* 8a05af0342e5c61bd1c0e9d1ddc3791c204be771 fix(agents): pin capability/settings sub-nav while content scrolls (MUL-4426) (#5280)
* 0b054b5c8b04cd5a8b16a39fa1369b5238d11d2b fix(chat): clear external channel binding on archive, drop archived from FAB unread (#5214)
* cec071dc06d3161c47a24e159460d7cace39a103 fix(chat): correct unread — archived sessions + mount-race auto-read (MUL-4360) (#5315)
* e10bb3fff0bae04dcbb34a9cfac796def214740e fix(chat): unify unread badge counting across sidebar, mobile, and thread list (MUL-4286) (#5239)
* 9f775db16edd0d65375726886a70974aacec9ec8 fix(cli): stop pflag from garbling login --token help output (MUL-4410) (#5253)
* 9d453fac1ea9e60acc8debb4d7a57bcd3e8ca868 fix(comments): clarify 409 for top-level comment from a comment-triggered task (MUL-4417) (#5292)
* c7002e3b308306a00b8431db9167ebef82681aaa fix(daemon): detect Codex CLI under ChatGPT.app on macOS (#5250)
* 7a405fd1cf9863ccd43e4e61a48ac6419346cc65 fix(daemon): keep the task transcript ordered and complete (#5210)
* 932bbf2bb501d9b451f6827aaad84eada15d762b fix(editor): guard Mod-Enter submit against open IME composition (#5231)
* 489657cfb508a20af836c8a8f35803c462b990c7 fix(inbox): align inbox list left padding with chat list (#5240)
* 65ccab172abab3b2008195bc7b6c27909507ce8f fix(issues): float find bar above sticky resolve collapse bars (MUL-4414) (#5264)
* b9b9e73e4942b5cf0ceb09c51484060efd01b881 fix(issues): keep detail content column centered under classic scrollbars (#5255)
* 45ff984518788b33b8e98f74ffcdc9310e0bc02d fix(labels): sweep resource-label junctions on bulk deletes (MUL-4479) (#5348)
* 1de4b2d688ea04e8657c15ff6c8b1a631722c034 fix(migrations): make 164_attachment_task_id idempotent to self-heal #5307 renumber drift (#5324)
* 8567ebffd94277478ce73f8f79c2b0cef75b98db fix(migrations): rebuild legacy label index CONCURRENTLY on rollback (MUL-4479) (#5357)
* 94f9dcaa7795013e4d3900b4683ab59768f2b7f9 fix(migrations): renumber attachment_task_id to resolve 161/162 prefix collision (#5307)
* 5f767d671a0b153dbeaa77bea75177e3c1734807 fix(redact): cover credential formats that leaked unredacted (#5274)
* 411a160b995908943dd877682dda81c5a319f9cb fix(release): harden v0.3.44 migrations (#5345)
* 2a48ffa2aa734a4a362c2c52a786cd98a20bcef6 fix(runtimes): simplify local machine list row (#5298)
* 79c4589f7dc9b9e3690e697bb167e6ecb0f926d3 fix(server): don't cancel active tasks when issue status → cancelled (#5328)
* f686901bd64171024138d0e4ca1ef9afd4b00ac7 fix(settings): align read-only fields and flatten cards (#5310)
* 4ad060ec54e1e866900908d69d92267240750962 fix(settings): unify form control widths with SettingsRow size tiers (#5291)
* 7356b56a10f3dbc519141babefdfdf3f41abdf09 fix(taskfailure): anchor HTTP status-code matches to digit boundaries (#5275)
* ca46fdb483cbb2e8b9df1016582d21af0d12eb26 fix(ui): lighten menu shadows with dedicated --menu-shadow token (#5256)
* 3e03d8f97b33e15ceb5de0d2045c5198bd9381ea fix(views): keep in-card side panels on the content surface color (#5329)
* 6aed9b40ee7a94cb170809973c90b061ae02e70c fix: confirm shortcut reset and refresh translations (#5295)
* 220fa58264be27c593e0c7b0c43c8180ddfc0f03 fix: guide SSH installs to token login (#5318)
* 57ecdef38bdc84e816b359c7f7d442c581a3d2c8 fix: hide disabled model-invocation skills from briefs (#5311)
* 4ee34b9fcbdfa38adc79a5228a027b3dd9565062 fix: return stage from issue list APIs
* b47e835d7d6bdcc4f872eb1a0ab02908be7db7c1 refactor(runtimes): organize runtime management by machine (#5297)
* 5541819f9817db1d6793236b71e8a79739f3f401 refactor(ui): unify collection page patterns (#5258)
* 06df00f414a8b66151fea8cfbbca5ea4d6d7780b refactor(views): remove Runtimes tab CLI-update red dot (#5228)