The generate_status_update service inserted AISessionStep with
step_type='status_update' which violated the DB CHECK constraint,
causing a 500 error. Also fix incorrect field name confidence_score
(should be confidence_at_step) and remove nonexistent confidence_tier.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implements Phase 1 of the FlowPilot-First pivot — the core AI session
experience where engineers describe a problem and FlowPilot guides them
through structured diagnosis with selectable options, free-text escape
hatches, and auto-generated documentation on resolution.
Backend: AISession + AISessionStep models, FlowPilot Engine (LLM
orchestration with structured JSON output), Flow Matching Engine v1
(semantic + keyword + recency scoring), 8 API endpoints with auth,
rate limiting, and AI quota enforcement.
Frontend: Intake screen, conversational session view with sidebar,
step cards with options/actions/resolution suggestions, resolve/escalate
modals, documentation view with rating, session history integration,
and /pilot route with sidebar navigation.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
