v0.1.32: Fix scan functionality and add debug logging

- Fixed scan functionality not showing output by ensuring JavaScript is properly injected
- Added default hint text to scan results area
- Added comprehensive debug console logging to help diagnose scan issues
- Improved scan section injection logic
- Updated version to 0.1.32 in all files

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

fichero_printer/fichero/api.py

@@ -77,7 +77,7 @@ async def lifespan(app: FastAPI):  # noqa: ARG001
 app = FastAPI(
     title="Fichero Printer API",
     description="REST API for the Fichero D11s (AiYin) thermal label printer.",
-    version = "0.1.31",
+    version = "0.1.32",
     lifespan=lifespan,
     docs_url=None,
     redoc_url=None,
@@ -130,23 +130,28 @@ def _ui_html() -> str:
                 <span class="loading" id="scan-loading" style="display: none;"></span>
                 <span id="scan-text">Scan for BLE Devices (10s)</span>
             </button>
-            <pre id="scan-results"></pre>
+            <pre id="scan-results">📱 Click "Scan for BLE Devices" to search for nearby Bluetooth devices...</pre>
         </div>
     """
     scan_script = r'''
 <script>
     async function scanForDevices() {
+        console.log('Scan function called - checking elements...');
         const resultsEl = document.getElementById('scan-results');
         const scanButton = document.getElementById('scan-button');
         const loadingEl = document.getElementById('scan-loading');
         const textEl = document.getElementById('scan-text');
         
+        console.log('Elements found:', { resultsEl, scanButton, loadingEl, textEl });
+        
         // Show loading state
         scanButton.disabled = true;
         loadingEl.style.display = 'inline-block';
         textEl.textContent = 'Scanning...';
         resultsEl.textContent = '🔍 Searching for BLE devices (this may take up to 10 seconds)...';
         
+        console.log('Starting scan request...');
+        
         try {
             const response = await fetch('/scan');
             
@@ -175,9 +180,11 @@ def _ui_html() -> str:
             console.error('Scan error:', e);
         } finally {
             // Reset button state
+            console.log('Resetting button state...');
             scanButton.disabled = false;
             loadingEl.style.display = 'none';
             textEl.textContent = 'Scan for BLE Devices (10s)';
+            console.log('Scan completed. Final result:', resultsEl.textContent);
         }
     }
 </script>
@@ -185,7 +192,7 @@ def _ui_html() -> str:
     # Inject after the main content but before scripts
     if "</main>" in template:
         parts = template.split("</main>", 1)
-        template = parts[0] + "</main>" + scan_html + parts[1]
+        template = parts[0] + "</main>" + scan_html + scan_script + parts[1]
     elif "</body>" in template:
         parts = template.split("</body>", 1)
         template = parts[0] + scan_html + scan_script + "</body>" + parts[1]