v0.1 — backend bones + ingredient sterilizer

LAN-only Flask API that consumes Mealie (source of truth for recipes / plans
/ lists) and clawdforge (centralized claude -p runner) to do AI work.

v0.1 surface:
  GET  /healthz                          liveness + clawdforge upstream
  GET  /api/recipes                      proxy Mealie recipe list
  POST /api/sterilize/preview/<slug>     dry-run AI parse, return proposals
  POST /api/sterilize/apply/<slug>       write parses back to Mealie

Why sterilizer first: Mealie's CRF parser is mediocre and Alice's hand-typed
recipes have lots of free-form ingredient strings ("about 2 cups cooked
white rice", "a pinch of salt") that don't aggregate cleanly into a
shopping list. We batch all ingredients of one recipe into a single Sonnet
call via clawdforge, get back parallel structured parses, then on apply
link each to Mealie food/unit records (creating missing by name) and PUT
the recipe back. Preview is non-destructive.

No UI in v0.1 — bearer-auth API only. Frontend + Authentik OIDC + Bob's
swamp/meadow/forest palette arrives in v0.2.

Auth: simple shared bearer in env (ADMIN_BEARER) until OIDC lands. LAN-only
deploy means the bearer is the only gate; no public exposure.

Stack: python:3.12-slim + Flask 3 + gunicorn + requests. No DB in v0.1.

compose.yml

@@ -0,0 +1,20 @@
+services:
+  cauldron:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: cauldron:local
+    container_name: cauldron
+    restart: unless-stopped
+    env_file:
+      - /srv/secrets/cauldron.env
+    ports:
+      # LAN-only. Same pattern as cwho on 7777.
+      - "0.0.0.0:7790:7790"
+      - "127.0.0.1:7790:7790"
+    networks:
+      - sulkta
+
+networks:
+  sulkta:
+    external: true