feat(cache): extend cache duration for uploaded assets

- Increase cache duration to 7 days for PNG, thumbnail, and HTML uploads
- Update cache settings in impl-generate.yml, impl-merge.yml, and impl-repair.yml

Author: MarkusNeusinger

.github/workflows/impl-generate.yml

@@ -534,7 +534,7 @@ jobs:
 
           # Upload PNG (with watermark)
           if [ -f "$IMPL_DIR/plot.png" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot.png" "${STAGING_PATH}/plot.png"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot.png" "${STAGING_PATH}/plot.png"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot.png" 2>/dev/null || true
             echo "png_url=${PUBLIC_URL}/plot.png" >> $GITHUB_OUTPUT
             echo "uploaded=true" >> $GITHUB_OUTPUT
@@ -545,15 +545,15 @@ jobs:
 
           # Upload thumbnail
           if [ -f "$IMPL_DIR/plot_thumb.png" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot_thumb.png" "${STAGING_PATH}/plot_thumb.png"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot_thumb.png" "${STAGING_PATH}/plot_thumb.png"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot_thumb.png" 2>/dev/null || true
             echo "thumb_url=${PUBLIC_URL}/plot_thumb.png" >> $GITHUB_OUTPUT
             echo "::notice::Uploaded thumbnail"
           fi
 
           # Upload HTML (interactive libraries)
           if [ -f "$IMPL_DIR/plot.html" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot.html" "${STAGING_PATH}/plot.html"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot.html" "${STAGING_PATH}/plot.html"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot.html" 2>/dev/null || true
             echo "html_url=${PUBLIC_URL}/plot.html" >> $GITHUB_OUTPUT
           fi

.github/workflows/impl-merge.yml

@@ -201,7 +201,7 @@ jobs:
           PRODUCTION="gs://pyplots-images/plots/${SPEC_ID}/${LIBRARY}"
 
           # Copy from staging to production
-          gsutil -m -h "Cache-Control:public, max-age=86400" cp -r "${STAGING}/*" "${PRODUCTION}/" 2>/dev/null || echo "No staging files to promote"
+          gsutil -m -h "Cache-Control:public, max-age=604800" cp -r "${STAGING}/*" "${PRODUCTION}/" 2>/dev/null || echo "No staging files to promote"
 
           # Make production files public
           gsutil -m acl ch -r -u AllUsers:R "${PRODUCTION}/" 2>/dev/null || true

.github/workflows/impl-repair.yml

@@ -187,17 +187,17 @@ jobs:
           gcloud auth activate-service-account --key-file=/tmp/gcs-key.json
 
           if [ -f "$IMPL_DIR/plot.png" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot.png" "${STAGING_PATH}/plot.png"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot.png" "${STAGING_PATH}/plot.png"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot.png" 2>/dev/null || true
           fi
 
           if [ -f "$IMPL_DIR/plot_thumb.png" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot_thumb.png" "${STAGING_PATH}/plot_thumb.png"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot_thumb.png" "${STAGING_PATH}/plot_thumb.png"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot_thumb.png" 2>/dev/null || true
           fi
 
           if [ -f "$IMPL_DIR/plot.html" ]; then
-            gsutil -h "Cache-Control:public, max-age=86400" cp "$IMPL_DIR/plot.html" "${STAGING_PATH}/plot.html"
+            gsutil -h "Cache-Control:public, max-age=604800" cp "$IMPL_DIR/plot.html" "${STAGING_PATH}/plot.html"
             gsutil acl ch -u AllUsers:R "${STAGING_PATH}/plot.html" 2>/dev/null || true
           fi