feat(schemas): add project and user config schemas

- Add project-config.schema.json for project config.
- Add user-config.schema.json for user config.

adds json schema definitions for ai-commit project and user configs to
enable validation and tooling

Co-Authored-By: Ai Commit <41898282+github-actions[bot]@users.noreply.github.com>

Author: xesrevinu

schemas/project-config.schema.json

@@ -0,0 +1,89 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ai-commit project config",
+  "type": "object",
+  "properties": {
+    "$schema": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "scopes": {
+      "anyOf": [
+        {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ProjectScope"
+          }
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "hook": {
+      "anyOf": [
+        {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "max_diff_lines": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "no_commit_co_author": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "no_model_co_author": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "additionalProperties": false,
+  "definitions": {
+    "ProjectScope": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "description": {
+          "type": "string"
+        }
+      },
+      "required": ["name"],
+      "additionalProperties": false
+    }
+  }
+}

schemas/user-config.schema.json

@@ -0,0 +1,68 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ai-commit user config",
+  "type": "object",
+  "properties": {
+    "$schema": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "api_key": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "base_url": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "model": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "no_commit_co_author": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "no_model_co_author": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "additionalProperties": false
+}