feat(director): strict production contracts and interface admission

examples/director-contracts/README.md

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+# Synthetic Director contract fixtures
+
+`contracts.json` contains all six core document families and 32 strict method
+request/result pairs. The six accompanying document files and `evidence.txt`
+are exact-byte references. They are self-authored engineering fixtures with no
+third-party assets. No referenced "render", "review", provider, job or payment
+was executed; success-shaped values test contract admission only.
+
+Run from the repository root:
+
+```bash
+python scripts/director_contracts.py --bundle examples/director-contracts/contracts.json --root .
+```
+
+The example uses 30 seconds at 24 FPS, frames 0–719 and terminal boundary 720.
+This time contract is real arithmetic; it is not evidence of a rendered film.
+See [the contract guide](../../references/director-contracts.md) for interfaces,
+limits and the distinction between structural, exact-byte and native acceptance.

examples/director-contracts/asset-spec-fixture.json

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+{
+  "schema_version": 1,
+  "kind": "director-asset-spec",
+  "id": "asset-spec-fixture",
+  "semantic_version": "1.0.0",
+  "logical_id": "fixture",
+  "asset_type": "fixture",
+  "semantic_role": "fixture",
+  "visual_characteristics": [],
+  "capabilities": [],
+  "source_policy": {
+    "network": "deny",
+    "providers": [],
+    "paid": "deny",
+    "policy_ref": null
+  },
+  "candidates": [],
+  "formats": [],
+  "scale_meters": 1,
+  "coordinates": {
+    "handedness": "right",
+    "right": "+X",
+    "up": "+Y",
+    "forward": "+Z",
+    "unit": "meter",
+    "angles": "radian",
+    "quaternion": "XYZW",
+    "matrices": "column-vectors",
+    "time": "second"
+  },
+  "materials": [],
+  "textures": [],
+  "polygon_budget": 0,
+  "memory_budget": 0,
+  "licensing": "fixture",
+  "attribution": "fixture",
+  "dependencies": [],
+  "review": "unreviewed",
+  "substitutions": [],
+  "generation_required": false
+}

examples/director-contracts/character-identity-fixture.json

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+{
+  "schema_version": 1,
+  "kind": "director-character-identity",
+  "id": "character-identity-fixture",
+  "semantic_version": "1.0.0",
+  "character_id": "aster-fixture",
+  "canonical_design": {
+    "artifact_id": "fixture-evidence",
+    "kind": "test-fixture",
+    "schema_version": 1,
+    "semantic_version": "1.0.0",
+    "path": "examples/director-contracts/evidence.txt",
+    "sha256": "a830419a9ea426abae098cca3bd07abd330efbca87490492e7885a6e1fdac075",
+    "byte_size": 82,
+    "media_type": "text/plain",
+    "provenance_ref": null,
+    "fixture": true,
+    "dependencies": []
+  },
+  "geometry": "fixture",
+  "silhouette": "fixture",
+  "proportions": [],
+  "scale_meters": 1,
+  "palette": [],
+  "materials": [],
+  "markings": [],
+  "asymmetries": [],
+  "costume": [],
+  "accessories": [],
+  "rig": null,
+  "bone_mapping": [],
+  "animation_capabilities": [],
+  "expression_capabilities": [],
+  "viewpoints": [],
+  "provenance": [],
+  "approved_variations": [],
+  "forbidden_transformations": []
+}