Phase 2 and 3 of the platform rework.
- Neutral request/response contract: external_id, metadata, X-AI-Key,
run_id in the response; client-specific fields removed.
- AI profile is a revision table: saving creates an inactive revision,
activation is separate, try-run does not store a run. One
chat-completions gateway serves AIHub and OpenAI-compatible profiles.
- Add between and in rule operators.
- Contracts moved to contracts/lead-scoring/ with a score-response fixture.
- Admin Web updated for revisions, runs and the neutral fixture.
- Consolidate tests; remove rewrite_architect.md and the stale handoff doc;
rewrite spec, CONTEXT and ARCHITECTURE for the current design.
Not verified: live AIHub/OpenAI behavior, Omni/EMS integration.
