feat(app): polish repository workflows and graph

.gitea/workflows/windows-build.yml

@@ -38,11 +38,22 @@ jobs:
         run: |
           cmake -S . -B build-win -G Ninja \
             -DCMAKE_TOOLCHAIN_FILE=mingw-toolchain.cmake \
-            -DCMAKE_BUILD_TYPE=Release
+            -DCMAKE_BUILD_TYPE=Release \
+            -DBUILD_SHARED_LIBS=OFF \
+            -DCMAKE_EXE_LINKER_FLAGS="-static -static-libgcc -static-libstdc++"
 
       - name: Build Windows executable
         run: cmake --build build-win --parallel
 
+      - name: Verify static runtime linkage
+        run: |
+          dependencies="$(x86_64-w64-mingw32-objdump -p build-win/bin/gitree.exe | sed -n 's/.*DLL Name: //p')"
+          printf '%s\n' "$dependencies"
+          if printf '%s\n' "$dependencies" | grep -Eqi 'lib(gcc|stdc\+\+|winpthread).*\.dll'; then
+            echo "The executable still depends on a MinGW runtime DLL."
+            exit 1
+          fi
+
       - name: Prepare artifact
         run: |
           mkdir -p dist