fix: CI should only run tests, not build/release

Removed Build Release and Security Scan jobs from CI.
Release is handled by release.yml.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: bumahkib7

.github/workflows/ci.yml

@@ -119,60 +119,3 @@ jobs:
         uses: taiki-e/install-action@nextest
       - name: Run tests (partition ${{ matrix.partition }}/3)
         run: cargo nextest run --workspace --partition count:${{ matrix.partition }}/3
-
-  build:
-    name: Build Release
-    runs-on: ubuntu-latest
-    needs: [fmt, clippy, test]
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install mold linker
-        run: |
-          sudo apt-get update && sudo apt-get install -y mold
-          mkdir -p ~/.cargo
-          echo '[target.x86_64-unknown-linux-gnu]' >> ~/.cargo/config.toml
-          echo 'linker = "clang"' >> ~/.cargo/config.toml
-          echo 'rustflags = ["-C", "link-arg=-fuse-ld=mold"]' >> ~/.cargo/config.toml
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
-      - name: Setup sccache
-        uses: mozilla-actions/[email protected]
-        continue-on-error: true
-      - name: Configure sccache
-        continue-on-error: true
-        run: |
-          if command -v sccache &> /dev/null && sccache --start-server 2>/dev/null; then
-            echo "SCCACHE_GHA_ENABLED=true" >> $GITHUB_ENV
-            echo "RUSTC_WRAPPER=sccache" >> $GITHUB_ENV
-          else
-            echo "sccache unavailable, running without cache"
-          fi
-      - name: Cache cargo registry
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-          key: cargo-registry-${{ runner.os }}-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            cargo-registry-${{ runner.os }}-
-      - name: Build release
-        run: cargo build --release
-
-  security-scan:
-    name: Security Scan (Self)
-    runs-on: ubuntu-latest
-    needs: build
-    permissions:
-      contents: read
-      security-events: write
-    steps:
-      - uses: actions/checkout@v4
-      - name: Run RMA on itself
-        uses: ./.github/actions/rma-scan
-        with:
-          path: '.'
-          profile: 'strict'
-          extra-args: '--skip-tests'
-          upload-sarif: true