Initial commit — Cortex API + Inara identity

Cortex: FastAPI backend serving Inara via Claude/Gemini CLI backends.
Includes SSE streaming chat, session persistence, Google Chat webhook
handler, and Docker support.

Inara: Identity files (persona, soul, protocols, memory, context tiers)
mounted read-only into the container at runtime.

Features in initial cut:
- /chat endpoint with SSE keepalive + LLM fallback
- Session store with rolling history window
- Markdown rendering, copy-to-clipboard, links open in new tab
- Stacked right-column input controls (height selector, enter toggle,
  note mode with public/private) — semi-hidden until textarea grows
- /note endpoint for injecting public context into session history
- Docker Compose config (local dev runs natively; Docker for server)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

inara/sessions/2026-03-06.md

@@ -0,0 +1,10 @@
+# Session Log — 2026-03-06
+
+### [03:21] `6974b48d`
+**Scott:** This is a test note
+
+**Inara:** Noted. ✨
+
+Markdown rendered cleanly on my end — tables, code blocks, blockquotes, the works. If you're testing the UI or a new client surface, looks like we're green across the board.
+
+Anything you actually need, or just shaking the tires?