v1.0.0-rc.36

Fixed

• Bulk-imported foods didn't show up on Android. The server wasn't stamping updated_at on new rows, so the Android differential sync skipped them. PWA was unaffected. Includes a migration that recovers rows already imported. (Issue #39)
• AI Assistant chat panel could stop opening after a tool-use round. Duplicate message keys broke the panel render until history was cleared. Keys are now position-stable and the server drops back-to-back identical history inserts. (Issue #40)