feat(orchestrator): slice 6 — source-IP-keyed multi-tenant policy (#352)

The orchestrator side of the multi-tenant consolidated sidecar: hold each
bottle's sidecar policy and serve it by verified source IP, with live
reload. One shared sidecar can now get per-bottle config keyed on who's
calling.

  * registry.py — a `policy` column (migration v3, opaque JSON the sidecar
    interprets) on BottleRecord; `register(..., policy=)` stores it,
    `set_policy(bottle_id, policy)` updates it live, and `attribute` returns
    it (the source-IP-keyed resolution).
  * service.py — `launch_bottle(..., policy=)` and `set_policy`.
  * control_plane.py — `POST /bottles` accepts `policy`; `PUT
    /bottles/<id>/policy` live-reloads it; `POST /resolve` returns
    {bottle_id, policy} for a verified (source_ip, token) — the per-request
    call the multi-tenant sidecar makes; `/attribute` stays identity-only.

Scope note: this is the control-plane / state half. The data-plane half —
the egress mitmproxy addon (and git-gate) selecting allowlist / DLP /
token-injection per client IP by calling `/resolve` — is the next slice
(route agent bottles through the shared sidecar). The orchestrator stays
policy-agnostic: it stores and serves the blob verbatim.

Tests: registry policy store/update/persist; Orchestrator launch-with-policy
+ live set_policy; control-plane resolve returns policy (403 on bad token),
PUT policy updates / 404 / 400. Verified live over HTTP (launch -> resolve
-> PUT reload -> resolve reflects). Full suite green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WBMWTEtQdJ4W5UrWuLHCck

bot_bottle/orchestrator/service.py

@@ -46,10 +46,12 @@ class Orchestrator:
         image_ref: str = "",
         slot: int | None = None,
         metadata: str = "",
+        policy: str = "",
     ) -> BottleRecord:
-        """Register a bottle and broker its launch. Rolls the registry entry
-        back if the launch doesn't take, so a failure leaves no orphan."""
-        rec = self.registry.register(source_ip, metadata=metadata)
+        """Register a bottle (with its sidecar policy) and broker its launch.
+        Rolls the registry entry back if the launch doesn't take, so a
+        failure leaves no orphan."""
+        rec = self.registry.register(source_ip, metadata=metadata, policy=policy)
         req = LaunchRequest(
             op="launch",
             bottle_id=rec.bottle_id,
@@ -77,9 +79,16 @@ class Orchestrator:
         return True
 
     def attribute(self, source_ip: str, identity_token: str) -> BottleRecord | None:
-        """Fail-closed attribution (delegates to the registry)."""
+        """Fail-closed attribution (delegates to the registry). The returned
+        record carries the bottle's `policy` — this is the source-IP-keyed
+        resolution the multi-tenant sidecar makes per request."""
         return self.registry.attribute(source_ip, identity_token)
 
+    def set_policy(self, bottle_id: str, policy: str) -> bool:
+        """Update a bottle's sidecar policy in place (live reload). False if
+        the bottle is unknown."""
+        return self.registry.set_policy(bottle_id, policy)
+
     # --- consolidated sidecar ----------------------------------------------
 
     def ensure_sidecar(self) -> None: