feat: initial fork hardened for gitea.schwenk.online

Fork cursor-gitea-agent with jq event parsing, cached dependency install,
and composer-2.5 as the default agent runtime.

Co-authored-by: Cursor <cursoragent@cursor.com>

action.yml

@@ -0,0 +1,43 @@
+name: Cursor Agent
+description: Run Cursor CLI on @cursor mentions in Gitea issues and pull requests
+inputs:
+  cursor_api_key:
+    description: Cursor API key
+    required: true
+  gitea_token:
+    description: Gitea API token for the cursor bot user
+    required: true
+  gitea_base_url:
+    description: Gitea instance URL (e.g. https://gitea.schwenk.online)
+    required: true
+  ai_model:
+    description: Cursor model id
+    required: false
+    default: composer-2.5
+
+runs:
+  using: composite
+  steps:
+    - name: Check comment and capture context
+      id: check
+      shell: bash
+      run: |
+        chmod +x "$GITHUB_ACTION_PATH/scripts/"*.sh
+        "$GITHUB_ACTION_PATH/scripts/check-comment.sh"
+
+    - name: Install dependencies
+      if: steps.check.outputs.run_cursor == 'true'
+      shell: bash
+      run: |
+        "$GITHUB_ACTION_PATH/scripts/install-deps.sh"
+
+    - name: Run Cursor
+      if: steps.check.outputs.run_cursor == 'true'
+      shell: bash
+      env:
+        CURSOR_API_KEY: ${{ inputs.cursor_api_key }}
+        GITEA_ACCESS_TOKEN: ${{ inputs.gitea_token }}
+        GITEA_BASE_URL: ${{ inputs.gitea_base_url }}
+        AI_MODEL: ${{ inputs.ai_model }}
+      run: |
+        "$GITHUB_ACTION_PATH/scripts/run-cursor.sh"