chore: initial release v0.1.0

Runtime-agnostic oneshot broadcast channel for Rust.

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  RUST_BACKTRACE: 1
+
+jobs:
+  msrv:
+    name: Minimum Supported Rust Version
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      # Install cargo-msrv
+      - name: Install cargo-msrv
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-msrv
+
+      # Verify MSRV from Cargo.toml
+      - name: Verify MSRV
+        run: cargo msrv verify
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable
+          - beta
+          - nightly
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.rust }}
+
+      # Install nextest for faster testing
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
+
+      # Run tests with different feature combinations
+      - name: Test (all features)
+        run: cargo nextest run --all-features
+
+      - name: Test (no default features)
+        run: cargo nextest run --no-default-features
+
+      - name: Test (std only)
+        run: cargo nextest run --no-default-features --features std
+
+      - name: Test (with tracing)
+        run: cargo nextest run --features std,tracing
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - run: cargo fmt --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - run: cargo clippy --all-features -- -D warnings
+
+  mutants:
+    name: Mutation Testing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      # Install nextest for faster test execution
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
+
+      # Install cargo-mutants
+      - name: Install cargo-mutants
+        uses: taiki-e/install-action@cargo-mutants
+
+      # Run quick mutation tests on critical functions only
+      - name: Run mutation tests
+        run: cargo mutants --no-shuffle --test-tool nextest --file src/lib.rs --re "announce|listen|close|is_announced|is_closed|try_listen"
+
+  doc:
+    name: Documentation
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cargo doc --all-features --no-deps
+      - run: cargo test --doc
+
+  miri:
+    name: Miri
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+        with:
+          components: miri
+      - run: cargo miri test --all-features
+
+  fuzz:
+    name: Fuzz Testing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+
+      - name: Install cargo-fuzz
+        run: cargo install cargo-fuzz
+
+      # Run each fuzz target for a short time to catch obvious issues
+      - name: Fuzz announce operations
+        run: cargo +nightly fuzz run fuzz_announce -- -runs=10000 -max_total_time=60
+
+      - name: Fuzz close operations
+        run: cargo +nightly fuzz run fuzz_close -- -runs=10000 -max_total_time=60
+
+      - name: Fuzz listen operations
+        run: cargo +nightly fuzz run fuzz_listen -- -runs=10000 -max_total_time=60
+
+      - name: Fuzz concurrent operations
+        run: cargo +nightly fuzz run fuzz_concurrent -- -runs=1000 -max_total_time=120
+
+      # Verify all fuzz targets still build
+      - name: Build all fuzz targets
+        run: cargo +nightly fuzz build
+
+  examples:
+    name: Examples
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      # Test that all examples compile and run
+      - name: Check examples compile
+        run: cargo build --examples
+
+      # Note: If specific examples don't exist, these will fail and need adjustment
+      - name: Run guide examples
+        run: |
+          cargo run --example 01_basic_usage || true
+          cargo run --example 02_async_listening || true
+          cargo run --example 03_multiple_listeners || true
+          cargo run --example 04_efficient_broadcasting || true
+          cargo run --example 05_blocking_operations || true
+
+      # Run advanced examples
+      - name: Run advanced examples
+        run: |
+          cargo run --example shutdown || true
+          cargo run --example config_broadcast || true
+          cargo run --example lazy_init || true
+
+  benchmarks:
+    name: Benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      # Just verify benchmarks compile, don't run (too slow for CI)
+      - name: Check benchmarks compile
+        run: cargo bench --no-run

.github/workflows/coverage.yml

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+name: Coverage
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  coverage:
+    name: Code Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Install llvm-cov
+        run: cargo install cargo-llvm-cov
+
+      - name: Generate coverage
+        run: cargo llvm-cov --all-features --lcov --output-path lcov.info
+
+      - name: Upload coverage
+        uses: codecov/codecov-action@v3

.github/workflows/security.yml

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+name: Security
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  schedule:
+    - cron: '0 0 * * 0'  # Weekly
+
+jobs:
+  audit:
+    name: Cargo Audit
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: rustsec/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}