feat: initial enforcement of template policy

backend/package-lock.json

@@ -75,6 +75,7 @@
         "pino": "^8.16.2",
         "posthog-node": "^3.6.2",
         "probot": "^13.0.0",
+        "safe-regex": "^2.1.1",
         "smee-client": "^2.0.0",
         "tedious": "^18.2.1",
         "tweetnacl": "^1.0.3",
@@ -106,6 +107,7 @@
         "@types/picomatch": "^2.3.3",
         "@types/prompt-sync": "^4.2.3",
         "@types/resolve": "^1.20.6",
+        "@types/safe-regex": "^1.1.6",
         "@types/uuid": "^9.0.7",
         "@typescript-eslint/eslint-plugin": "^6.20.0",
         "@typescript-eslint/parser": "^6.20.0",
@@ -9774,6 +9776,12 @@
       "integrity": "sha512-A4STmOXPhMUtHH+S6ymgE2GiBSMqf4oTvcQZMcHzokuTLVYzXTB8ttjcgxOVaAp2lGwEdzZ0J+cRbbeevQj1UQ==",
       "dev": true
     },
+    "node_modules/@types/safe-regex": {
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/@types/safe-regex/-/safe-regex-1.1.6.tgz",
+      "integrity": "sha512-CQ/uPB9fLOPKwDsrTeVbNIkwfUthTWOx0l6uIGwVFjZxv7e68pCW5gtTYFzdJi3EBJp8h8zYhJbTasAbX7gEMQ==",
+      "dev": true
+    },
     "node_modules/@types/semver": {
       "version": "7.5.6",
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.5.6.tgz",
@@ -17778,6 +17786,14 @@
         "@babel/runtime": "^7.8.4"
       }
     },
+    "node_modules/regexp-tree": {
+      "version": "0.1.27",
+      "resolved": "https://registry.npmjs.org/regexp-tree/-/regexp-tree-0.1.27.tgz",
+      "integrity": "sha512-iETxpjK6YoRWJG5o6hXLwvjYAoW+FEZn9os0PD/b6AP6xQwsa/Y7lCVgIixBbUPMfhu+i2LtdeAqVTgGlQarfA==",
+      "bin": {
+        "regexp-tree": "bin/regexp-tree"
+      }
+    },
     "node_modules/regexp.prototype.flags": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.5.1.tgz",
@@ -18094,6 +18110,14 @@
         }
       ]
     },
+    "node_modules/safe-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/safe-regex/-/safe-regex-2.1.1.tgz",
+      "integrity": "sha512-rx+x8AMzKb5Q5lQ95Zoi6ZbJqwCLkqi3XuJXp5P3rT8OEc6sZCJG5AE5dU3lsgRr/F4Bs31jSlVN+j5KrsGu9A==",
+      "dependencies": {
+        "regexp-tree": "~0.1.1"
+      }
+    },
     "node_modules/safe-regex-test": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/safe-regex-test/-/safe-regex-test-1.0.0.tgz",