chore(main): release 0.1.12

[cella-releases]

Automated release PR. Review the changelog below, then merge to cut the release.

0.1.12 (2026-10-10)

🎉 New features

• errors: rule refusals answer with their own error type (#162) (5333bd8)
• infra: production runs on a single VM (329a068)
• project tiles on the user profile, workspace tiles on home (#163) (e646153)

🐞 Bug fixes

• deleting a primary label answered 400. The task reassignment cast a (1226148)
• frontend: bridge cella#1128 so the root CHANGELOG.md compiles in MDX (#136) (2bcb917)
• frontend: one error toast per failure (#157) (8113f8a)
• project: another user's project list is scoped to the caller (#161) (8248550)
• task tools over MCP, offline replay order, member task stats, atomic project create (#150) (1226148)

🔧 Small improvements

• task: narrow task-board store subscriptions (#145) (1efc112)
• task: the task-link example comes from the mocks (#159) (664c99c)

🧹 Chores

• dev ports on 3010 and 4010 to 4016, dependency updates, leaner attachment seed (#165) (5261873)
• marketing: adopt upstream for stale copies (#158) (e422162)
• marketing: the about-page screenshots are re-shot as WebP (#167) (7c13f48)
• sync upstream cella (#140) (47ed7b9)
• sync upstream cella (#142) (b51730d)
• sync upstream cella v0.10.1 (6b676860) (#138) (22e895a)
• sync upstream cella v0.10.2 (55af2fac) (#139) (d514c3c)
• sync upstream cella v0.10.4 (0a022a61) (#141) (2d95e8f)
• sync upstream cella v0.11.1 (0f57bc7e) (#143) (2799e75)
• sync upstream cella v0.12.2 (205bab62) (#146) (aa2f689)
• sync upstream cella v0.12.2 (e9a8d485) (#144) (216afad)
• sync upstream cella v0.13.0 (d84e7e13) (#147) (b55a3d9)
• sync upstream cella v0.14.0 (79ee6cde) (#148) (f6f1c7f)
• sync upstream cella v0.16.0 (47a4b6731) (#154) (d5d88ab)
• sync upstream cella v0.16.0 (9d30032c) (#149) (ba51b53)
• sync upstream cella v0.16.0 (ef396fff) (#155) (709cd8b)
• sync upstream cella v0.17.0 (08bd6e28) (#156) (d8af3e2)
• sync upstream cella v0.17.0 (73ed1317) (#160) (717dd98)
• sync upstream cella v0.18.0 (41bf6888) (#166) (f274af4)
• sync upstream cella v0.9.8 (45e881a7) (#135) (1e4a69e)

🧪 Tests

• task: link previews of a private task are intentional (#164) (e6bb2f4)
• yjs suites and bench scenarios fit raak's attachment policy, placement and task edits (#168) (12a0778)

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