ci: 👷 Add CI tests

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/check.yml

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+name: Check Types
+
+on:
+  push:
+    branches: ['*']
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ['main']
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install NPM packages
+        run: |
+          bun install
+
+      - name: Run typechecks
+        run: |
+          bun run typecheck

.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"
+
+on:
+    push:
+        branches: ["main"]
+    pull_request:
+        # The branches below must be a subset of the branches above
+        branches: ["main"]
+
+jobs:
+    analyze:
+        name: Analyze
+        # 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
+        # Consider using larger runners for possible analysis time improvements.
+        runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+        timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
+        permissions:
+            actions: read
+            contents: read
+            security-events: write
+
+        strategy:
+            fail-fast: false
+            matrix:
+                language: ["javascript"]
+                # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby', 'swift' ]
+                # Use only 'java' to analyze code written in Java, Kotlin or both
+                # Use only 'javascript' to analyze code written in JavaScript, TypeScript or both
+                # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
+
+            # Initializes the CodeQL tools for scanning.
+            - name: Initialize CodeQL
+              uses: github/codeql-action/init@v2
+              with:
+                  languages: ${{ matrix.language }}
+                  # If you wish to specify custom queries, you can do so here or in a config file.
+                  # By default, queries listed here will override any specified in a config file.
+                  # Prefix the list here with "+" to use these queries and those in the config file.
+
+                  # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+                  # queries: security-extended,security-and-quality
+
+            # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
+            # If this step fails, then you should remove it and run the build manually (see below)
+            - name: Autobuild
+              uses: github/codeql-action/autobuild@v2
+
+            # ℹ️ Command-line programs to run using the OS shell.
+            # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+            #   If the Autobuild fails above, remove it and uncomment the following three lines.
+            #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+            # - run: |
+            #     echo "Run, Build Application using script"
+            #     ./location_of_script_within_repo/buildscript.sh
+
+            - name: Perform CodeQL Analysis
+              uses: github/codeql-action/analyze@v2
+              with:
+                  category: "/language:${{matrix.language}}"

.github/workflows/lint.yml

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+name: Lint & Format
+
+on:
+  push:
+    branches: ["*"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: ["main"]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      security-events: write
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install NPM packages
+        run: |
+          bun install
+
+      - name: Run linting
+        run: |
+          bunx @biomejs/biome ci .