Rename and update HTML upload script for Cloudflare R2 (#51)

## Summary
- Renamed `upload_to_r2.py` → `upload_html_to_r2.py` for better clarity
- Updated script to use `CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME`
environment variable instead of generic `CLOUDFLARE_R2_BUCKET_NAME`
- Updated all references in help text, messages, and examples

## Motivation
The script now uses the correct bucket name environment variable that
matches the workflow configuration in
`.github/workflows/html-export-workflow.yml`.

## Test plan
- [x] Tested locally by uploading 10,942 HTML files to R2 successfully
- [x] Verified all environment variable references are updated
- [x] Confirmed help text and messages reflect new script name

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: marcarl

exporters/html/upload_to_r2.py exporters/html/upload_html_to_r2.pyexporters/html/upload_to_r2.py renamed to exporters/html/upload_html_to_r2.py

@@ -19,27 +19,27 @@ def check_required_env_vars():
     """Kontrollera att alla nödvändiga miljövariabler är satta"""
     required_vars = [
         'CLOUDFLARE_R2_ACCESS_KEY_ID',
-        'CLOUDFLARE_R2_SECRET_ACCESS_KEY', 
-        'CLOUDFLARE_R2_BUCKET_NAME',
+        'CLOUDFLARE_R2_SECRET_ACCESS_KEY',
+        'CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME',
         'CLOUDFLARE_R2_ACCOUNT_ID'
     ]
-    
+
     missing_vars = []
     for var in required_vars:
         if not os.getenv(var):
             missing_vars.append(var)
-    
+
     if missing_vars:
         print("Error: Följande miljövariabler saknas:")
         for var in missing_vars:
             print(f"  - {var}")
         print("\nExempel på hur du sätter dem:")
         print("export CLOUDFLARE_R2_ACCESS_KEY_ID='your_access_key'")
         print("export CLOUDFLARE_R2_SECRET_ACCESS_KEY='your_secret_key'")
-        print("export CLOUDFLARE_R2_BUCKET_NAME='your_bucket_name'")
+        print("export CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME='your_bucket_name'")
         print("export CLOUDFLARE_R2_ACCOUNT_ID='your_account_id'")
         return False
-    
+
     print("✓ Alla nödvändiga miljövariabler är konfigurerade")
     return True
 
@@ -66,7 +66,7 @@ def configure_aws_cli():
 
 def upload_html_site(output_base_dir=""):
     """Ladda upp hela HTML-siten (eli/ + index-sidor) till Cloudflare R2"""
-    bucket_name = os.getenv('CLOUDFLARE_R2_BUCKET_NAME')
+    bucket_name = os.getenv('CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME')
     account_id = os.getenv('CLOUDFLARE_R2_ACCOUNT_ID')
     endpoint_url = f"https://{account_id}.r2.cloudflarestorage.com"
 
@@ -121,7 +121,7 @@ def upload_html_site(output_base_dir=""):
 
 def upload_index_pages(output_base_dir="", json_input_dir=None):
     """Ladda upp index-sidor till Cloudflare R2"""
-    bucket_name = os.getenv('CLOUDFLARE_R2_BUCKET_NAME')
+    bucket_name = os.getenv('CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME')
     account_id = os.getenv('CLOUDFLARE_R2_ACCOUNT_ID')
     endpoint_url = f"https://{account_id}.r2.cloudflarestorage.com"
 
@@ -247,15 +247,15 @@ def upload_summary():
     """Skapa och ladda upp sammanfattning"""
     print("Skapar och laddar upp sammanfattning...")
 
-    bucket_name = os.getenv('CLOUDFLARE_R2_BUCKET_NAME')
+    bucket_name = os.getenv('CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME')
     account_id = os.getenv('CLOUDFLARE_R2_ACCOUNT_ID')
     endpoint_url = f"https://{account_id}.r2.cloudflarestorage.com"
 
     # Skapa sammanfattning
     summary_content = f"""HTML export completed at {datetime.datetime.now().isoformat()}
 Files uploaded to Cloudflare R2 bucket: {bucket_name}/
 Index pages uploaded: index.html (30 senaste), latest.html (10 senaste)
-Upload performed locally via upload_to_r2.py script
+Upload performed locally via upload_html_to_r2.py script
 """
 
     # Skriv till fil
@@ -303,8 +303,8 @@ def main():
         formatter_class=argparse.RawDescriptionHelpFormatter,
         epilog="""
 Exempel:
-  python upload_to_r2.py --output-base-dir output/html_site  # Ladda upp från output/html_site
-  python upload_to_r2.py --output-base-dir output/html_site --json-dir ../sfs-jsondata  # Med JSON-mapp
+  python upload_html_to_r2.py --output-base-dir output/html_site  # Ladda upp från output/html_site
+  python upload_html_to_r2.py --output-base-dir output/html_site --json-dir ../sfs-jsondata  # Med JSON-mapp
         """
     )
     parser.add_argument(
@@ -359,7 +359,7 @@ def main():
     print()
     if success:
         print("✓ Alla filer har laddats upp till Cloudflare R2!")
-        print(f"Bucket: {os.getenv('CLOUDFLARE_R2_BUCKET_NAME')}")
+        print(f"Bucket: {os.getenv('CLOUDFLARE_R2_HTMLEXPORT_BUCKET_NAME')}")
         print(f"Källa: {args.output_base_dir}")
     else:
         print("✗ Något gick fel under uppladdningen")