feat: add debug logging and improve proof-of-payment icon styling

Changes:
- Add console.log statements for shareId validation failures in locationActions
- Replace DocumentIcon with TicketIcon for proof-of-payment downloads (consistency)
- Add teal color to all proof-of-payment icons for visual distinction
- Adjust vertical alignment of icons for better visual alignment with text

Debug logging helps troubleshoot:
- shareId extraction failures
- Checksum validation failures
- Location not found errors

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

app/lib/actions/locationActions.ts

@@ -659,12 +659,14 @@ export const uploadUtilBillsProofOfPayment = async (
         // 1. EXTRACT AND VALIDATE CHECKSUM (stateless, fast)
         const extracted = extractShareId(shareId);
         if (!extracted) {
+            console.log('shareID extraction failed');
             return { success: false, error: 'Invalid share link' };
         }
 
         const { locationId: locationID, checksum } = extracted;
 
         if (!validateShareChecksum(locationID, checksum)) {
+            console.log('shareID checksum validation failed');
             return { success: false, error: 'Invalid share link' };
         }
 
@@ -803,6 +805,7 @@ export async function validateShareAccess(
   // 1. Extract locationId and checksum from combined ID
   const extracted = extractShareId(shareId);
   if (!extracted) {
+    console.log('shareID extraction failed');
     return { valid: false, error: 'Invalid share link' };
   }
 
@@ -810,6 +813,7 @@ export async function validateShareAccess(
 
   // 2. Validate checksum FIRST (before DB query - stateless validation)
   if (!validateShareChecksum(locationId, checksum)) {
+    console.log('shareID checksum validation failed');
     return { valid: false, error: 'Invalid share link' };
   }
 
@@ -821,6 +825,7 @@ export async function validateShareAccess(
   );
 
   if (!location) {
+    console.log('Location not found for shareID');
     return { valid: false, error: 'Invalid share link' };
   }