chore(release): bump version to 0.12.0

[mortondev]

Version bump for the 0.12.0 release. Highlights since 0.11.0:

• Configurable AI models — AI is off unless explicitly configured; models per role with per-feature overrides; any OpenAI-compatible endpoint via OPENAI_BASE_URL (feat(ai): configurable models, off unless configured (root cause of #180) #206, root cause of Summary sweep loops infinitely on invalid model ID (no failure marker, no circuit breaker) #180)
• Managed-cloud platform-credential source — PLATFORM_CREDENTIALS_SOURCE=env reads shared integration OAuth creds from env; self-host DB path unchanged (feat(integrations): platform-credential source for managed cloud (Db/Env) #209)
• i18n: full locale parity backfill + portal auth screen translations (fix(i18n): backfill missing translations to full locale parity (#187) #202, fix(i18n): translate portal auth screens and silence false MISSING_TRANSLATION errors (#199) #203)
• Shortcut: resolve inbound workflow state from webhook references (fix(shortcut): inbound status-sync no-op + surface webhook signing secret #204)

Tag v0.12.0 follows on the merge commit (docker workflow publishes the 0.12.0 image via semver tag).

🤖 Generated with Claude Code