chore: add semantic-release workflow and configuration

Added GitHub Actions workflow for automatic versioning and releases using semantic-release with Angular commit convention.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.releaserc.json

@@ -0,0 +1,39 @@
+{
+  "branches": ["main"],
+  "plugins": [
+    [
+      "@semantic-release/commit-analyzer",
+      {
+        "preset": "angular",
+        "releaseRules": [
+          {"message": "*#patch*", "release": "patch"},
+          {"message": "*#minor*", "release": "minor"},
+          {"message": "*#major*", "release": "major"},
+          {"type": "fix", "release": "patch"},
+          {"type": "feat", "release": "minor"},
+          {"type": "perf", "release": "patch"}
+        ]
+      }
+    ],
+    [
+      "@semantic-release/release-notes-generator",
+      {
+        "preset": "angular"
+      }
+    ],
+    [
+      "@semantic-release/changelog",
+      {
+        "changelogFile": "CHANGELOG.md"
+      }
+    ],
+    "@semantic-release/github",
+    [
+      "@semantic-release/git",
+      {
+        "assets": ["CHANGELOG.md"],
+        "message": "chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}"
+      }
+    ]
+  ]
+}