convert to backblaze fetcher

.env.example

@@ -1,21 +1,19 @@
-# Content Extractor Configuration
+# Backblaze credentials
+BACKBLAZE_EMAIL=you@example.com
+BACKBLAZE_PASSWORD=your_password
 
-# Obsidian vault path (default: ~/Obsidian Vault)
-OBSIDIAN_VAULT_PATH=~/Obsidian Vault
+# Invoice fields (all optional - leave empty to skip)
+INVOICE_VAT_ID=
+INVOICE_DOCUMENT_TYPE=
+INVOICE_COMPANY=
+INVOICE_NOTES=
 
-# Browser settings (for Instagram extraction)
+# Output
+OUTPUT_DIR=./invoices
+
+# Browser
 BROWSER_HEADLESS=true
 BROWSER_TIMEOUT=30000
 
-# Content extraction settings
-MAX_CONTENT_LENGTH=10000
-GENERATE_SUMMARY=true
-
-# YouTube settings
-YOUTUBE_LANGUAGE=en
-
-# Instagram settings
-INSTAGRAM_WAIT_TIME=5
-
 # Logging
 LOG_LEVEL=INFO