Create codeql.yml

.github/codeql-config.yml

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+name: "CodeQL Config"
+
+# Only analyze the ESM build output
+paths:
+    - dist/webchat.esm.js
+
+# Ignore everything else
+paths-ignore:
+    - src
+    - node_modules
+    - dist/webchat.js
+    - "**/*.test.js"
+    - "**/*.html"
+    - cypress
+    - docs
+    - architecture-docs

.github/workflows/codeql.yml

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+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL Advanced"
+
+on:
+    push:
+        branches: ["main"]
+    pull_request:
+        branches: ["main"]
+    schedule:
+        - cron: "40 15 * * 1"
+
+jobs:
+    analyze:
+        name: Analyze (${{ matrix.language }})
+        # Runner size impacts CodeQL analysis time. To learn more, please see:
+        #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+        #   - https://gh.io/supported-runners-and-hardware-resources
+        #   - https://gh.io/using-larger-runners (GitHub.com only)
+        # Consider using larger runners or machines with greater resources for possible analysis time improvements.
+        runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+        permissions:
+            # required for all workflows
+            security-events: write
+
+            # required to fetch internal or private CodeQL packs
+            packages: read
+
+            # only required for workflows in private repositories
+            actions: read
+            contents: read
+
+        strategy:
+            fail-fast: false
+            matrix:
+                include:
+                    - language: typescript
+                      build-mode: none
+                # CodeQL supports the following values keywords for 'language': 'actions', 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'rust', 'swift'
+                # Use `c-cpp` to analyze code written in C, C++ or both
+                # Use 'java-kotlin' to analyze code written in Java, Kotlin or both
+                # Use 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+                # To learn more about changing the languages that are analyzed or customizing the build mode for your analysis,
+                # see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning.
+                # If you are analyzing a compiled language, you can modify the 'build-mode' for that language to customize how
+                # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
+
+            # Setup Node.js for JavaScript/TypeScript builds
+            - name: Setup Node.js
+              if: matrix.language == 'typescript'
+              uses: actions/setup-node@v4
+              with:
+                  node-version: "22"
+                  cache: "npm"
+
+            # Install dependencies for JavaScript/TypeScript
+            - name: Install dependencies
+              if: matrix.language == 'typescript'
+              run: npm ci
+
+            # Build ESM bundle for JavaScript/TypeScript analysis
+            - name: Build ESM bundle
+              if: matrix.language == 'typescript'
+              run: npm run build:esm
+
+            # Initializes the CodeQL tools for scanning.
+            - name: Initialize CodeQL
+              uses: github/codeql-action/init@v4
+              with:
+                  languages: ${{ matrix.language }}
+                  build-mode: ${{ matrix.build-mode }}
+                  # Use config file only for JavaScript/TypeScript to limit analysis to ESM build
+                  config-file: ${{ matrix.language == 'typescript' && '.github/codeql-config.yml' || '' }}
+                  # If you wish to specify custom queries, you can do so here or in a config file.
+                  # By default, queries listed here will override any specified in a config file.
+                  # Prefix the list here with "+" to use these queries and those in the config file.
+
+                  # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+                  # queries: security-extended,security-and-quality
+
+            - name: Perform CodeQL Analysis
+              uses: github/codeql-action/analyze@v4
+              with:
+                  category: "/language:${{matrix.language}}"