* test(integration): credential canary suite harness
Adds tests/integration/security with canary generation and search, sweeps over the database, GET routes, client responses, sink doubles and Redis, an owned proxy rig, a sweep sensitivity self-test and the config deployment api_key slot. Registers the security group in run.py, the manifest and the CircleCI integration matrix.
* test(integration): widen canary route sweep and harden the rig
Enumerate lazily registered feature routers, call parameterized routes with placeholder ids, fail on routes that return no response, skip provider pass-through routes, add an explicit admin-only route allowance, let the sink double use a configurable token, inflate gzip members anywhere in a blob, sweep Redis before the route walk, and trap outbound connections from the owned proxy.
* test(integration): descend into any decoded value that can still hold an encoded canary
* test(integration): bound canary decoding by depth and decoded bytes
* test(integration): scope log-table and spend-log reads to the scenario window
* test(integration): sweep spend-log rows in the scenario date window
* test(integration): keep spend-log date window summarized
* test(integration): request-path credential canary slots D1-D4
* test(integration): read the Logs drawer and spend-log filter for failed request rows
* test(integration): check the marker in each failed row's spend-log filter; run header slots on chat-family routes
* test(integration): run D2 on embeddings again; only the client-header slot runs on chat-family routes
* test(integration): resolve deployment ids, scope paginated log lists, key allowances by slot
* test(integration): pass the slot deployment's model_info id to the route sweep
* test(integration): expect 404 from the caller-scoped team membership route
* test(integration): use the rig's own master key and expect 404 from submission lookups
* test(integration): check the overridden rig key without assuming the default key is unknown
