[#634] Watcher 자동화를 구성한다 (#635)

* chore: watcher yml 파일 추가

* chore: pr 트리거 제거

Author: opficdev

.github/workflows/merge-risk-watch.yml

@@ -0,0 +1,39 @@
+name: Merge Risk Watch
+
+on:
+  schedule:
+    - cron: "0 15 * * 0-4"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  actions: read
+  checks: read
+  pull-requests: read
+
+jobs:
+  watch:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.fork == false
+    uses: opficdev/Watcher/.github/workflows/merge-risk-watch.yml@0.1.0
+    with:
+      repository: ${{ github.repository }}
+      base_branch: develop
+      default_branch: main
+      critical_file_patterns: |
+        .github/workflows/**
+        .github/actions/**
+        .mise.toml
+        .package.resolved
+        Gemfile.lock
+        Tuist.swift
+        Workspace.swift
+        Tuist/ProjectDescriptionHelpers/**
+        Application/**/Project.swift
+        Application/Shared/**
+        Widget/**/Project.swift
+        fastlane/**
+        **/*.xcstrings
+    secrets:
+      watcher_github_token: ${{ secrets.WATCHER_GITHUB_TOKEN }}
+      gemini_api_key: ${{ secrets.GEMINI_API_KEY }}
+      discord_webhook_url: ${{ secrets.DISCORD_WEBHOOK_URL }}