Refactor annotation tool from WPF desktop app to .NET API

Replace the WPF desktop application (Azaion.Suite, Azaion.Annotator,
Azaion.Common, Azaion.Inference, Azaion.Loader, Azaion.LoaderUI,
Azaion.Dataset, Azaion.Test) with a standalone .NET Web API in src/.

Made-with: Cursor

.cursor/skills/security/scripts/validate-config.json

@@ -0,0 +1,45 @@
+{
+  "skillName": "security-testing",
+  "skillVersion": "1.0.0",
+  "requiredTools": [
+    "jq"
+  ],
+  "optionalTools": [
+    "npm",
+    "semgrep",
+    "trivy",
+    "ajv",
+    "jsonschema",
+    "python3"
+  ],
+  "schemaPath": "schemas/output.json",
+  "requiredFields": [
+    "skillName",
+    "status",
+    "output",
+    "output.summary",
+    "output.findings",
+    "output.owaspCategories"
+  ],
+  "requiredNonEmptyFields": [
+    "output.summary"
+  ],
+  "mustContainTerms": [
+    "OWASP",
+    "security",
+    "vulnerability"
+  ],
+  "mustNotContainTerms": [
+    "TODO",
+    "placeholder",
+    "FIXME"
+  ],
+  "enumValidations": {
+    ".status": [
+      "success",
+      "partial",
+      "failed",
+      "skipped"
+    ]
+  }
+}