fix(ci): optimize ci build triggers, strip dir prefix in SHA256SUMS (#13)

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

Author: Emin017

.github/scripts/build-wheel.sh

@@ -105,7 +105,7 @@ print(f'ecc_py smoke test passed: {len(required)} bindings verified')
 "
 
 # Checksums
-sha256sum "$repair_out"/*.whl > dist/wheel/SHA256SUMS
+(cd "$repair_out" && sha256sum *.whl) > dist/wheel/SHA256SUMS
 
 echo "[build-wheel] done"
 echo "[build-wheel] raw wheels:      $raw_out"

.github/workflows/ci.yml

@@ -2,6 +2,13 @@ name: CI
 
 on:
   pull_request:
+    paths:
+      - 'src/**'
+      - 'cmake/**'
+      - 'CMakeLists.txt'
+      - 'pyproject.toml'
+      - 'build.sh'
+      - '.github/**'
   push:
     branches: [main]