Phase 0: Repository-Initialisierung nach Bauplan v1.2

- Struktur gemäß §8 (Eigentumsgrenzen), PLAN.md als normative Basis
- Pflichtdokumente: STATUS.md, ERRORS.md, TEST_REPORT.md, CHANGELOG.md, ADRs
- ADR-0001 Python 3.13-Pin, ADR-0002 GStreamer 1.28.6-Pin (Windows),
  ADR-0003 IPC TCP+MessagePack v1
- Kernpakete: hms_protocol, hms_domain, hms_parameter, hms_artnet,
  hms_adaptive, hms_capabilities, hms_plugin_sdk
- Renderer-Spike: D3D11-Primärpfad + Dev-GL-Pfad (§36 Nr. 4-5)
- Control Core: FastAPI REST + WebSocket (§36 Nr. 9)
- Beispielplugins: Passthrough + Gaussian Blur (3 Adaptive-Quality-
  Varianten, HLSL/GLSL/GLES)
- Tools: Art-Net-Emulator, Fixture-Generator (Master32/Layer64-CSV),
  Capability-Probe
- JSON-Schemas: IPC, Plugin, Projekt, Cluster
- 121 Unit-/Integrationstests grün, Ruff grün

Gate 0 bleibt offen: Hardwaremessungen nur auf echter Windows-Referenz-
hardware gültig (§29.7, §33).

plugins/examples/com.hms.fx.example_passthrough/plugin.json

@@ -0,0 +1,57 @@
+{
+  "schema_version": 1,
+  "id": "com.hms.fx.example_passthrough",
+  "name": "Example Passthrough",
+  "version": "1.0.0",
+  "api_version": 1,
+  "kind": "filter",
+  "vendor": "HMS",
+  "entrypoints": {
+    "d3d11": {
+      "type": "hlsl_singlepass",
+      "passes": [
+        {"pixel_shader": "shaders/d3d11/passthrough.hlsl"}
+      ]
+    },
+    "gl": {
+      "type": "glsl_singlepass",
+      "passes": [
+        {"fragment": "shaders/gl/passthrough.frag"}
+      ]
+    },
+    "gles": {
+      "type": "glsl_es_singlepass",
+      "passes": [
+        {"fragment": "shaders/gles/passthrough.frag"}
+      ]
+    }
+  },
+  "capabilities": {
+    "minimum_tier": "PI_LITE",
+    "requires_input_texture": true,
+    "supported_backends": ["d3d11", "gl", "gles"]
+  },
+  "adaptive_quality": {
+    "default": "auto",
+    "variants": [
+      {"id": "low", "internal_scale": 1.0, "samples": 1},
+      {"id": "medium", "internal_scale": 1.0, "samples": 1},
+      {"id": "high", "internal_scale": 1.0, "samples": 1}
+    ],
+    "transition_ms": 180,
+    "semantic_parameters_unchanged": ["mix"]
+  },
+  "parameters": [
+    {
+      "id": "mix",
+      "label": "Mix",
+      "type": "float",
+      "minimum": 0.0,
+      "maximum": 1.0,
+      "default": 0.0,
+      "dmx_slots": [1],
+      "curve": "linear"
+    }
+  ],
+  "failure_mode": "bypass"
+}