fix(board): choose project before familiar

[CompleteDotTech]

Summary

• present Project before Familiar in the Board inspector and New Task form
• fetch only familiars authorized for the selected project's session-launch access requirement
• disable the dependent Familiar picker until the authorized result is available and clear invalid selections after a project change

Why

Previously both forms exposed global or inverse-scoped choices, allowing an invalid Project/Familiar pairing that only failed later with project access denied when starting work. The server-side launch authorization remains the final enforcement boundary.

Validation

• pnpm typecheck
• pnpm check:tests-wired
• pnpm test:app (885 files)
• focused project-permissions, familiars route, Board picker, and New Task tests

Fixes #3703