Marc-André Bombeck 210becb28b feat(coach): lay down the reasoning, trail and memory contract ...

Add the shared contract the reasoning release builds on, with no change
to how a turn runs today.

- Schema: operator reasoning controls on app_settings (0376), the
  encrypted trail text on coach_messages (0377), and source,
  last_used_at and source_message_id on coach_facts (0378).
- Provider contract: CompletionParams.reasoning and onReasoning,
  CompletionResult.reasoning and providerState, AiMessage.providerState.
- Reasoning levels, thinking budgets and the background-job table in
  src/lib/ai/reasoning/levels.ts; coachPrefsJson.reasoning, absent
  meaning medium, salvaged field by field like every other pref.
- Stream: activity, memoryNote and planProposal frames, done.stop and
  done.withheldResults, result.interim, a compare chart kind, eight
  table refs, three more clarification kinds with an assumed choice,
  the change_assumption chip, and assumptions, activity, stop,
  memoryNote and planProposal on the provenance. Zod mirror, type
  parity and the native-client key rule cover every new frame.
- Chat request: memoryDecision and planDecision, parsed and not yet
  acted on.
- Stub contracts for the memory functions and the activity recorder,
  inert until their implementations land.
- Backup, restore and rotation carry the new columns; a fact's message
  reference is resolved against the restored messages like its
  conversation reference.
- Message keys for the trail, memory, plans, assumptions, replies,
  interim tables, comparison charts and reasoning settings in all seven
  locales, each reachable from a catalog and checked both ways.

2026-10-06 18:39:50 +02:00

2.8 MiB

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