feat(showcase): wire aimock dir mounts + LANGGRAPH_HTTP env in docker-compose

Replace single-file volume mounts with directory mounts (shared/, d4/,
d6/) so new fixture files are picked up without editing compose files.
Remove --proxy-only flag to catch fixture gaps instead of silently
falling through to real API. Add LANGGRAPH_HTTP env var from main.

Author: jpr5

showcase/docker-compose.local.yml

@@ -44,21 +44,22 @@ services:
     profiles: ["infra", "all"]
     restart: unless-stopped
     volumes:
-      - ./aimock/d5-all.json:/showcase-fixtures/d5-all.json:ro
-      - ./aimock/smoke.json:/showcase-fixtures/smoke.json:ro
-      - ./aimock/feature-parity.json:/showcase-fixtures/feature-parity.json:ro
-    # `--proxy-only` + `--provider-openai` mirrors the Railway aimock setup:
-    # matched fixtures short-circuit deterministically; unmatched requests
-    # fall through to real OpenAI (using OPENAI_API_KEY from .env). Without
-    # these flags aimock returns 404 on no-match, the LangGraph SDK
-    # interprets that as `NotFoundError`, and the demo crashes with
-    # "Failed to fetch" instead of seeing a real model response.
+      # Directory mounts — each depth/shared dir is mounted wholesale so new
+      # fixture files are picked up without editing this file.
+      - ./aimock/shared:/showcase-fixtures/shared:ro
+      - ./aimock/d4:/showcase-fixtures/d4:ro
+      - ./aimock/d6:/showcase-fixtures/d6:ro
+    # In test mode aimock must NOT proxy to real providers — unmatched
+    # requests should fail so fixture gaps are caught immediately instead
+    # of silently falling through to real OpenAI/Anthropic/Gemini.
+    # Provider URLs are still declared so aimock knows which provider a
+    # request targets, but without --proxy-only no traffic leaves the
+    # container.
     command: [
         "--port",
         "4010",
         "--host",
         "0.0.0.0",
-        "--proxy-only",
         "--provider-openai",
         "https://api.openai.com",
         "--provider-anthropic",
@@ -75,12 +76,13 @@ services:
         "8",
         "--latency",
         "60",
+        # Directory-based fixture loading (one --fixtures per directory)
         "--fixtures",
-        "/showcase-fixtures/d5-all.json",
+        "/showcase-fixtures/shared",
         "--fixtures",
-        "/showcase-fixtures/smoke.json",
+        "/showcase-fixtures/d4",
         "--fixtures",
-        "/showcase-fixtures/feature-parity.json",
+        "/showcase-fixtures/d6",
         "--validate-on-load",
       ]
     healthcheck:

showcase/docker-compose.record.yml

@@ -21,6 +21,11 @@ services:
       # under this dir. Existing baseline fixtures stay :ro from the base
       # compose; only the recording dir is writable.
       - ./aimock/d5-recorded:/showcase-fixtures/d5-recorded:rw
+      # Read-only mounts for depth-organized fixture directories so aimock
+      # can short-circuit on already-matched prompts from shared/d4/d6.
+      - ./aimock/shared:/showcase-fixtures/shared:ro
+      - ./aimock/d4:/showcase-fixtures/d4:ro
+      - ./aimock/d6:/showcase-fixtures/d6:ro
     command: [
         "--port",
         "4010",
@@ -32,17 +37,15 @@ services:
         "--provider-anthropic",
         "https://api.anthropic.com",
         # Load ONLY the recorded dir as the fixture source. The baseline
-        # d5-all.json / feature-parity.json fixtures are intentionally
-        # NOT loaded — if they were, aimock would short-circuit on
+        # depth-organized fixtures (shared/d4/d6) are intentionally NOT
+        # loaded — if they were, aimock would short-circuit on
         # already-matched prompts and never proxy them to the real
         # provider, defeating the recording pass.
         #
-        # smoke.json is also dropped here; the langgraph-python container
-        # doesn't use it during d5 probes, only the dedicated /api/smoke
-        # route which we aren't exercising.
-        #
         # First --fixtures path is the recording destination base; aimock
         # writes to `<base>/recorded/<provider>-<ts>-<uuid>.json`.
         "--fixtures",
         "/showcase-fixtures/d5-recorded",
+        "--fixtures",
+        "/showcase-fixtures/shared",
       ]

showcase/docker-compose.replay.yml

@@ -24,9 +24,9 @@ services:
         "--fixtures",
         "/showcase-fixtures/d5-recorded",
         "--fixtures",
-        "/showcase-fixtures/d5-all.json",
+        "/showcase-fixtures/shared",
         "--fixtures",
-        "/showcase-fixtures/smoke.json",
+        "/showcase-fixtures/d4",
         "--fixtures",
-        "/showcase-fixtures/feature-parity.json",
+        "/showcase-fixtures/d6",
       ]

showcase/tests/docker-compose.integrations.yml

@@ -1,6 +1,6 @@
 # Aimock sidecar for per-package e2e testing in CI.
 #
-# Boots aimock with the shared feature-parity fixture so per-package
+# Boots aimock with the depth-organized fixture directories so per-package
 # Playwright tests get deterministic LLM responses.
 #
 # Usage:
@@ -14,9 +14,21 @@ services:
   aimock:
     image: ghcr.io/copilotkit/aimock:latest
     volumes:
-      - ../aimock/feature-parity.json:/fixtures/default.json:ro
+      - ../aimock/shared:/fixtures/shared:ro
+      - ../aimock/d4:/fixtures/d4:ro
+      - ../aimock/d6:/fixtures/d6:ro
     command:
-      ["--fixtures", "/fixtures", "--host", "0.0.0.0", "--validate-on-load"]
+      [
+        "--fixtures",
+        "/fixtures/shared",
+        "--fixtures",
+        "/fixtures/d4",
+        "--fixtures",
+        "/fixtures/d6",
+        "--host",
+        "0.0.0.0",
+        "--validate-on-load",
+      ]
     ports:
       - "4010:4010"
     healthcheck: