ci: add back other ci checks

.drone.yml

@@ -1,3 +1,37 @@
+---
+kind: pipeline
+type: docker
+name: unit tests
+clone:
+  recursive: true
+  submodule_update_remote: true
+
+trigger:
+  branch:
+  - main
+
+steps:
+- name: unit tests
+  image: unit_tests:latest
+  pull: if-not-exists
+  commands:
+    - |
+      set -e
+
+      git submodule update --init --recursive
+      conan build . \
+        -c tools.system.package_manager:mode=install \
+        -s build_type=Release \
+        -o enable_static_analysis=False \
+        -o enable_tests=True \
+        --build=missing
+
+      for test in $(find ./build -type f -name '*_tests' -executable); do
+        echo "Running $test"
+        "$test"
+      done
+
+---
 kind: pipeline
 type: docker
 name: valgrind
@@ -27,3 +61,66 @@ steps:
 
       find ./build -type f -name "*_tests" -executable | xargs -I {} bash -c 'valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes --verbose --error-exitcode=255 {}' || exit 1
 
+---
+kind: pipeline
+type: docker
+name: static analysis
+clone:
+  recursive: true
+  submodule_update_remote: true
+
+trigger:
+  branch:
+  - main
+
+steps:
+- name: static_analysis
+  image: static_analysis:latest
+  pull: if-not-exists
+  privileged: true
+  commands:
+    - |
+      git submodule update --init --recursive
+
+      conan build . \
+        -c tools.system.package_manager:mode=install \
+        -s build_type=Release \
+        -o enable_static_analysis=True \
+        -o enable_tests=True \
+        --build=missing
+
+---
+kind: pipeline
+type: docker
+name: clang format
+clone:
+  recursive: true
+  submodule_update_remote: true
+
+trigger:
+  branch:
+  - main
+
+steps:
+- name: clang format
+  image: clang_format:latest
+  pull: if-not-exists
+  commands:
+    - |
+      set -e
+      clang-format --version
+      has_fomatting_issues=0
+
+      for file in $(find ./modules -name '*.?pp'); do
+        echo "Checking format for $file"
+        if ! clang-format --dry-run --Werror "$file"; then
+          echo "❌ Formatting issue detected in $file"
+          has_fomatting_issues=1
+        fi
+      done
+
+      if [ "$has_fomatting_issues" -eq 0 ]; then
+        echo "✅ All files are properly formatted! Well done! ^~^"
+      fi
+
+      exit ${has_fomatting_issues}