Clean release snapshot

tests/fixtures/plugin_capabilities/invalid_capability_metadata.json

@@ -0,0 +1,20 @@
+{
+  "id": "broken_capability_metadata",
+  "name": "Broken Capability Metadata",
+  "nav": { "label": "Broken", "screen": "plugin-broken" },
+  "screen": "screen.html",
+  "settings": { "html": "settings.html" },
+  "standards": ["capability-pipelines.v1"],
+  "capabilities": {
+    "stems": {
+      "roles": ["owner", "not-a-role"],
+      "commands": ["mute", 12],
+      "events": "not-a-list",
+      "mode": "teleport",
+      "compatibility": "magic",
+      "ownership": "surprise-owner",
+      "safety": "dangerous",
+      "version": 1
+    }
+  }
+}

tests/fixtures/plugin_capabilities/unsupported_capability_version.json

@@ -0,0 +1,17 @@
+{
+  "id": "future_capabilities",
+  "name": "Future Capabilities",
+  "standards": ["capability-pipelines.v999"],
+  "capabilities": {
+    "stems": {
+      "roles": ["owner", "provider"],
+      "commands": ["mute"],
+      "events": [],
+      "mode": "active",
+      "compatibility": "none",
+      "ownership": "exclusive-owner",
+      "safety": "safe",
+      "version": 999
+    }
+  }
+}

tests/fixtures/plugin_capabilities/valid_owner_provider.json

@@ -0,0 +1,18 @@
+{
+  "id": "stems",
+  "name": "Stems",
+  "standards": ["capability-pipelines.v1", "plugin-runtime-idempotent.v1"],
+  "capabilities": {
+    "stems": {
+      "roles": ["owner", "provider"],
+      "commands": ["mute", "restore", "inspect"],
+      "events": ["claim:created", "claim:released", "stems.ready"],
+      "description": "Owns stem mute and restore coordination for integrated audio plugins.",
+      "mode": "active",
+      "compatibility": "none",
+      "ownership": "exclusive-owner",
+      "safety": "safe",
+      "version": 1
+    }
+  }
+}

tests/fixtures/plugin_capabilities/valid_requester_observer.json

@@ -0,0 +1,17 @@
+{
+  "id": "nam_tone",
+  "name": "NAM Tone",
+  "standards": ["capability-pipelines.v1", "plugin-runtime-idempotent.v1"],
+  "capabilities": {
+    "stems": {
+      "roles": ["requester", "observer"],
+      "commands": ["mute", "restore", "inspect"],
+      "events": ["claim:created", "claim:released", "stems.manual-unmute"],
+      "mode": "active",
+      "compatibility": "legacy-window-shim",
+      "ownership": "requester-only",
+      "safety": "safe",
+      "version": 1
+    }
+  }
+}