feat(render): implement Campaign AR and terrain fidelity

docs/render-packs/plugin-manifest-v1.schema.json

@@ -0,0 +1,68 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "urn:acdream:render-pack:plugin-manifest:v1",
+  "title": "acdream plugin manifest v1",
+  "description": "Manifest shared by gameplay plugins and declarative render packs. A render pack includes renderPack in kinds.",
+  "type": "object",
+  "required": [
+    "id",
+    "displayName",
+    "version",
+    "entryDll",
+    "apiVersion"
+  ],
+  "properties": {
+    "$schema": {
+      "type": "string"
+    },
+    "id": {
+      "type": "string",
+      "minLength": 1,
+      "maxLength": 128,
+      "pattern": "^[a-z][a-z0-9._-]*$",
+      "description": "Stable plugin identity. It is persisted; do not reuse or localize it."
+    },
+    "displayName": {
+      "type": "string",
+      "minLength": 1
+    },
+    "version": {
+      "type": "string",
+      "pattern": "^[0-9]+(?:\\.[0-9]+){1,3}$",
+      "description": "Dotted System.Version-compatible package version."
+    },
+    "entryDll": {
+      "type": "string",
+      "minLength": 5,
+      "maxLength": 512,
+      "pattern": "^(?![A-Za-z]:)(?!/)(?!.*(?:^|/)\\.\\.(?:/|$))[^\\\\]+\\.[dD][lL][lL]$",
+      "description": "Safe forward-slash relative path to the managed entry assembly."
+    },
+    "apiVersion": {
+      "type": "integer",
+      "const": 1,
+      "description": "AcDream.Plugin.Abstractions PluginApi version, not RenderPackApi."
+    },
+    "dependencies": {
+      "type": "array",
+      "uniqueItems": true,
+      "items": {
+        "type": "string",
+        "pattern": "^[a-z][a-z0-9._-]*$"
+      },
+      "default": []
+    },
+    "kinds": {
+      "type": "array",
+      "minItems": 1,
+      "uniqueItems": true,
+      "items": {
+        "type": "string",
+        "enum": ["gameplay", "renderPack"]
+      },
+      "default": ["gameplay"],
+      "description": "Omitting kinds preserves legacy gameplay-plugin behavior. A render pack must explicitly include renderPack."
+    }
+  },
+  "additionalProperties": true
+}