feat: switch from deprecated mistralrs-server to mistralrs CLI

Build the mistralrs binary (CLI) instead of the deprecated
mistralrs-server. The RPM still installs as /usr/bin/mistralrs-server
for backwards compatibility. The systemd unit now invokes
`mistralrs-server serve` to use the CLI's serve subcommand.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/build-release.yml

@@ -44,7 +44,7 @@ jobs:
           git clone --depth 1 --branch "${{ inputs.tag }}" \
             https://github.com/EricLBuehler/mistral.rs.git src/
 
-      - name: Build mistralrs-server
+      - name: Build mistralrs
         run: |
           export PATH="${{ matrix.cuda_home }}/bin:${PATH}"
           export LD_LIBRARY_PATH="${{ matrix.cuda_home }}/targets/x86_64-linux/lib:${{ matrix.cuda_home }}/lib64:${LD_LIBRARY_PATH:-}"
@@ -59,14 +59,14 @@ jobs:
       - name: Collect artifacts
         run: |
           mkdir --parents artifacts
-          cp src/target/release/mistralrs-server "artifacts/mistralrs-server-${{ matrix.name }}"
-          echo "built: $(artifacts/mistralrs-server-${{ matrix.name }} --version 2>&1 | head -1)"
+          cp src/target/release/mistralrs "artifacts/mistralrs-${{ matrix.name }}"
+          echo "built: $(artifacts/mistralrs-${{ matrix.name }} --version 2>&1 | head -1)"
 
       - name: Upload binary artifact
         uses: actions/upload-artifact@v3
         with:
-          name: mistralrs-server-${{ matrix.name }}-fc${{ matrix.fedora_version }}
-          path: artifacts/mistralrs-server-${{ matrix.name }}
+          name: mistralrs-${{ matrix.name }}-fc${{ matrix.fedora_version }}
+          path: artifacts/mistralrs-${{ matrix.name }}
           retention-days: 1
 
   package:
@@ -84,7 +84,7 @@ jobs:
       - name: Download binary
         uses: actions/download-artifact@v3
         with:
-          name: mistralrs-server-${{ matrix.name }}-fc${{ matrix.fedora_version }}
+          name: mistralrs-${{ matrix.name }}-fc${{ matrix.fedora_version }}
           path: artifacts/
 
       - name: Determine version
@@ -105,7 +105,7 @@ jobs:
         run: |
           rm -f ~/.rpmmacros
           rpmdev-setuptree
-          cp artifacts/mistralrs-server-${{ matrix.name }} ~/rpmbuild/SOURCES/
+          cp artifacts/mistralrs-${{ matrix.name }} ~/rpmbuild/SOURCES/
           cp rpm/systemd/mistralrs@.service ~/rpmbuild/SOURCES/
           cp rpm/systemd/mistralrs@.conf.example ~/rpmbuild/SOURCES/
           rpmbuild -bb rpm/mistralrs.spec \