teach: v0.9.0

0.9.0 (2026-07-13)

Features

• education: align teach and learn navigation (48896cd)
• implement AI-assisted feedback generation for student quiz submissions (e347a46)
• improve vocabulary details (#4958) (9e01bd1)
• mail: add smart labels and assisted composing (8ccd2fa)
• migrate vocabulary details and suggestions from OED to Laban Dictionary (0f549c2)
• platform: complete satellite app cutover (b9ac2ef)

Bug Fixes

• teach: address final AI review feedback (05fc697)
• teach: address vocabulary review feedback (4efa1a8)
• teach: harden AI feedback concurrency (f470e6e)
• teach: preserve saved vocabulary feedback (976fd2c)