Sync package extension search schema

Author: GTrunSec

schemas/semantic-search-packet.v1.schema.json

@@ -68,6 +68,15 @@
       "type": "string",
       "minLength": 1
     },
+    "projectPackage": {
+      "$ref": "#/$defs/projectPackage"
+    },
+    "extensions": {
+      "type": "array",
+      "items": {
+        "$ref": "#/$defs/providerExtension"
+      }
+    },
     "view": {
       "enum": [
         "workspace",
@@ -492,6 +501,80 @@
     "projectPath": {
       "$ref": "semantic-source-location.v1.schema.json#/$defs/projectPath"
     },
+    "projectPackage": {
+      "type": "object",
+      "description": "Provider-owned package manifest summary for the active project root.",
+      "additionalProperties": false,
+      "required": [
+        "path",
+        "name"
+      ],
+      "properties": {
+        "path": {
+          "$ref": "#/$defs/projectPath"
+        },
+        "name": {
+          "type": "string",
+          "minLength": 1
+        },
+        "dependencies": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "fields": {
+          "$ref": "#/$defs/fields"
+        }
+      }
+    },
+    "providerExtension": {
+      "type": "object",
+      "description": "Provider-owned optional package extension capability surfaced through the shared search packet envelope.",
+      "additionalProperties": false,
+      "required": [
+        "name",
+        "activation",
+        "capabilities"
+      ],
+      "properties": {
+        "name": {
+          "type": "string",
+          "minLength": 1
+        },
+        "activation": {
+          "type": "string",
+          "minLength": 1
+        },
+        "packageManager": {
+          "type": "string",
+          "minLength": 1
+        },
+        "package": {
+          "type": "string",
+          "minLength": 1
+        },
+        "dependencies": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "capabilities": {
+          "type": "array",
+          "minItems": 1,
+          "items": {
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "fields": {
+          "$ref": "#/$defs/fields"
+        }
+      }
+    },
     "windowTarget": {
       "description": "A window-set target is either a canonical project path or a graph frontier token such as feature:cli, cfg:unix, or import:serde. It is not a display locator or rank-prefixed path.",
       "anyOf": [