diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
deleted file mode 100644
index 903f8af..0000000
--- a/.github/dependabot.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: github-actions
-    directory: /
-    schedule:
-      interval: weekly
-      time: "07:00"
-      timezone: "Asia/Tokyo"
-  - package-ecosystem: cargo
-    directory: /
-    schedule:
-      interval: weekly
-      time: "07:00"
-      timezone: "Asia/Tokyo"
diff --git a/.github/workflows/audit.yaml b/.github/workflows/audit.yaml
deleted file mode 100644
index 58597e6..0000000
--- a/.github/workflows/audit.yaml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: Security audit
-
-on:
-  schedule:
-    - cron: "0 0 */3 * *"
-
-  push:
-    branches: [main]
-    paths:
-      - "**/Cargo.toml"
-      - "**/Cargo.lock"
-
-  pull_request:
-    paths:
-      - "**/Cargo.toml"
-      - "**/Cargo.lock"
-
-jobs:
-  audit:
-    name: Audit
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-
-      - name: Install cargo-audit
-        uses: taiki-e/install-action@30eab0fabba9ea3f522099957e668b21876aa39e # v2.66.6
-        with:
-          tool: cargo-audit
-
-      - name: Run audit
-        run: cargo audit
diff --git a/.github/workflows/benchmark.yaml b/.github/workflows/benchmark.yaml
deleted file mode 100644
index a794c2c..0000000
--- a/.github/workflows/benchmark.yaml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: Benchmark
-on:
-  push:
-    branches:
-      - main
-    paths:
-      - '**/*.rs'
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-      - '.github/workflows/benchmark.yaml'
-
-permissions:
-  contents: write
-  deployments: write
-
-jobs:
-  benchmark:
-    name: Run Rust benchmark example
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-      - name: Toolchain setup
-        run: rustup toolchain update nightly && rustup default nightly
-      - name: Run benchmark
-        run: cargo +nightly bench | tee output.txt
-
-      - name: Store benchmark result
-        uses: benchmark-action/github-action-benchmark@4bdcce38c94cec68da58d012ac24b7b1155efe8b # v1.20.7
-        with:
-          name: Rust Benchmark
-          tool: 'cargo'
-          output-file-path: output.txt
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          auto-push: true
-          # Show alert with commit comment on detecting possible performance regression
-          alert-threshold: '200%'
-          comment-on-alert: true
-          fail-on-alert: true
-          benchmark-data-dir-path: docs
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
deleted file mode 100644
index 019aa36..0000000
--- a/.github/workflows/ci.yaml
+++ /dev/null
@@ -1,97 +0,0 @@
-name: Rust CI
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - '**/*.rs'
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-      - '.github/workflows/ci.yaml'
-
-  pull_request:
-    paths:
-      - '**/*.rs'
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-      - '.github/workflows/ci.yaml'
-
-env:
-  CARGO_TERM_COLOR: always
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  check:
-    name: Check
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-        with:
-          fetch-depth: 0
-
-      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
-        with:
-          components: rustfmt, clippy
-          cache-shared-key: setup-rust-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Install reviewdog
-        uses: reviewdog/action-setup@d8a7baabd7f3e8544ee4dbde3ee41d0011c3a93f # v1.5.0
-
-      - name: Check format
-        run: |
-          cargo fmt --all -- --check
-
-      - uses: giraffate/clippy-action@13b9d32482f25d29ead141b79e7e04e7900281e0 # v1.0.1
-        with:
-          reporter: 'github-pr-review'
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          fail_on_error: true
-          filter_mode: nofilter
-
-      - name: Build
-        run: cargo build
-
-  test:
-    name: Test
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-        with:
-          fetch-depth: 0
-
-      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
-        with:
-          components: llvm-tools-preview
-          cache-shared-key: setup-rust-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Install tools
-        uses: taiki-e/install-action@30eab0fabba9ea3f522099957e668b21876aa39e # v2.66.6
-        with:
-          tool: cargo-llvm-cov, cargo-nextest
-
-      - name: Run test
-        if: runner.os != 'Linux'
-        run: |
-          cargo nextest run
-
-      - name: Generate coverage
-        if: runner.os == 'Linux'
-        run: cargo llvm-cov nextest --lcov --output-path lcov.info
-
-      - name: Upload coverage
-        if: runner.os == 'Linux'
-        uses: k1LoW/octocov-action@73d561f65d59e66899ed5c87e4621a913b5d5c20 # v1.5.0
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/dependabot-auto-merge.yaml b/.github/workflows/dependabot-auto-merge.yaml
deleted file mode 100644
index 1bd95e6..0000000
--- a/.github/workflows/dependabot-auto-merge.yaml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Dependabot Auto-merge
-
-on:
-  pull_request:
-    types:
-      - opened
-      - synchronize
-      - reopened
-
-permissions:
-  contents: write
-  pull-requests: write
-
-jobs:
-  dependabot-automation:
-    runs-on: ubuntu-latest
-    if: ${{ github.actor == 'dependabot[bot]' }}
-    timeout-minutes: 13
-    steps:
-      - name: Dependabot metadata
-        id: metadata
-        uses: dependabot/fetch-metadata@21025c705c08248db411dc16f3619e6b5f9ea21a # v2.5.0
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-      - name: Approve & enable auto-merge for Dependabot PR
-        if: |
-          steps.metadata.outputs.update-type == 'version-update:semver-patch' ||
-          steps.metadata.outputs.update-type == 'version-update:semver-minor'
-        run: |
-          gh pr merge --auto -s "$PR_URL"
-        env:
-          PR_URL: ${{ github.event.pull_request.html_url }}
-          PR_TITLE: ${{ github.event.pull_request.title }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
deleted file mode 100644
index d290d21..0000000
--- a/.github/workflows/release.yaml
+++ /dev/null
@@ -1,134 +0,0 @@
-name: Release
-
-on:
-  push:
-    tags:
-      - 'v*'
-  workflow_dispatch:
-
-permissions:
-  contents: write
-
-jobs:
-  build:
-    name: Build - ${{ matrix.target }}
-    strategy:
-      matrix:
-        include:
-          - target: x86_64-unknown-linux-gnu
-            runner: ubuntu-latest
-            os: Linux
-            arch: x86_64
-            ext: tar.gz
-          - target: aarch64-unknown-linux-gnu
-            runner: ubuntu-24.04-arm
-            os: Linux
-            arch: arm64
-            ext: tar.gz
-          - target: x86_64-apple-darwin
-            runner: macos-15-intel
-            os: Darwin
-            arch: x86_64
-            ext: tar.gz
-          - target: aarch64-apple-darwin
-            runner: macos-latest
-            os: Darwin
-            arch: arm64
-            ext: tar.gz
-          - target: x86_64-pc-windows-msvc
-            runner: windows-latest
-            os: Windows
-            arch: x86_64
-            ext: zip
-    runs-on: ${{ matrix.runner }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-
-      - name: Setup sccache
-        uses: mozilla-actions/sccache-action@7d986dd989559c6ecdb630a3fd2557667be217ad # v0.0.9
-
-      - name: Setup environment variables for sccache
-        shell: bash
-        run: |
-          echo "SCCACHE_GHA_ENABLED=true" >> "$GITHUB_ENV"
-          echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
-
-      - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
-        with:
-          rustflags: ""
-
-      - name: Get project name
-        id: project
-        shell: bash
-        run: |
-          name=$(cargo metadata --format-version 1 --no-deps | jq -r '.packages[0].name')
-          echo "name=$name" >> "$GITHUB_OUTPUT"
-
-      - name: Build
-        run: cargo build --release
-
-      - name: Create archive (Unix)
-        if: matrix.os != 'Windows'
-        shell: bash
-        run: |
-          name="${{ steps.project.outputs.name }}"
-          archive_name="${name}_${{ matrix.os }}_${{ matrix.arch }}.tar.gz"
-          tar -czvf "$archive_name" -C target/release "$name"
-          echo "archive_name=$archive_name" >> "$GITHUB_ENV"
-
-      - name: Create archive (Windows)
-        if: matrix.os == 'Windows'
-        shell: pwsh
-        run: |
-          $name = "${{ steps.project.outputs.name }}"
-          $archiveName = "${name}_${{ matrix.os }}_${{ matrix.arch }}.zip"
-          Compress-Archive -Path "target/release/${name}.exe" -DestinationPath $archiveName
-          echo "archive_name=$archiveName" >> $env:GITHUB_ENV
-
-      - name: Upload artifact
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
-        with:
-          name: ${{ steps.project.outputs.name }}_${{ matrix.os }}_${{ matrix.arch }}
-          path: ${{ env.archive_name }}
-          if-no-files-found: error
-
-  release:
-    name: Release
-    needs: build
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-        with:
-          fetch-depth: 0
-
-      - name: Download all artifacts
-        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
-        with:
-          path: artifacts
-          merge-multiple: true
-
-      - name: Generate changelog
-        id: changelog
-        run: |
-          # Get the previous tag
-          prev_tag=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
-
-          if [ -n "$prev_tag" ]; then
-            echo "## Changes since $prev_tag" > changelog.md
-            echo "" >> changelog.md
-            git log --pretty=format:"- %s" "$prev_tag"..HEAD >> changelog.md
-          else
-            echo "## Initial Release" > changelog.md
-          fi
-
-      - name: Create release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          gh release create "${{ github.ref_name }}" \
-            --title "${{ github.ref_name }}" \
-            --notes-file changelog.md \
-            artifacts/*