feat: Integrate frequency-based device identification system

Integrated comprehensive device attribution system into GigLez:

1. Simple Device Matcher (src/matcher/simple_matcher.py):
   - Frequency-based device categorization (315/433/868/915 MHz)
   - Protocol-specific identification (Princeton, EV1527, Oregon Scientific, etc.)
   - Modulation + frequency matching (OOK/FSK/ASK)
   - Confidence scoring (0.4-0.95 range)
   - 50+ device types covered

2. API Integration (src/api/main_simple.py):
   - Device matching in upload pipeline
   - Added device fields: device_name, device_category, match_confidence, match_method, device_description
   - Top 5 alternative matches stored per capture
   - New endpoint: GET /api/v1/captures/{id} for detail view

3. Frontend Implementation:
   - Detail modal with comprehensive device information
   - Device identification section with confidence bars
   - Alternative matches display
   - Signal, location, and metadata sections
   - Keyboard (ESC) and click-outside modal closing

4. UI Enhancements (static/css/main.css):
   - Modal overlay with backdrop blur
   - Animated modal slide-in
   - Confidence visualization (green/yellow/red bars)
   - Responsive detail grid layout
   - Device match cards with categories

5. JavaScript Integration:
   - detail-modal.js: Comprehensive detail view renderer
   - Updated map.js and search.js to use detail modal
   - Removed placeholder functions

6. Utilities:
   - scripts/rematch_captures.py: Re-run matcher on existing data
   - Successfully re-matched 20 existing captures

Device Categories Supported:
- Consumer RF (remotes, sensors)
- Automotive (key fobs, TPMS)
- Home Automation (garage/gate openers, blinds)
- Sensors (weather stations, temperature)
- Security (door/window sensors, alarms)
- IoT (smart meters, LoRa devices)
- Industrial (SCADA, telemetry, RFID)

Match Methods:
- Protocol matching (highest confidence: 0.7-0.95)
- Frequency matching (0.4-0.7)
- Modulation + frequency matching (0.5-0.7)

Frontend now displays:
- Device name and category on map markers
- Confidence percentage
- Detailed device information modal
- Alternative device matches
- Match method explanation

All existing captures successfully identified with 60-70% confidence.

static/css/main.css

@@ -543,6 +543,209 @@ footer p {
     margin-bottom: 0.5rem;
 }
 
+/* Modal Styles */
+.modal {
+    display: none;
+    position: fixed;
+    z-index: 2000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0, 0, 0, 0.6);
+    backdrop-filter: blur(4px);
+}
+
+.modal.active {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.modal-content {
+    background: white;
+    border-radius: 0.5rem;
+    box-shadow: var(--shadow-lg);
+    max-width: 800px;
+    width: 90%;
+    max-height: 90vh;
+    overflow-y: auto;
+    position: relative;
+    animation: modalSlideIn 0.3s ease-out;
+}
+
+@keyframes modalSlideIn {
+    from {
+        opacity: 0;
+        transform: translateY(-50px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+.modal-header {
+    padding: 1.5rem;
+    border-bottom: 1px solid var(--border-color);
+    display: flex;
+    justify-content: space-between;
+    align-items: start;
+}
+
+.modal-header h2 {
+    margin: 0;
+    font-size: 1.5rem;
+}
+
+.modal-close {
+    background: none;
+    border: none;
+    font-size: 1.5rem;
+    cursor: pointer;
+    color: var(--text-secondary);
+    padding: 0;
+    width: 32px;
+    height: 32px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.25rem;
+    transition: all 0.2s;
+}
+
+.modal-close:hover {
+    background: var(--light-bg);
+    color: var(--text-primary);
+}
+
+.modal-body {
+    padding: 1.5rem;
+}
+
+.detail-section {
+    margin-bottom: 2rem;
+}
+
+.detail-section:last-child {
+    margin-bottom: 0;
+}
+
+.detail-section h3 {
+    font-size: 1.125rem;
+    margin-bottom: 1rem;
+    color: var(--text-primary);
+    border-bottom: 2px solid var(--primary-color);
+    padding-bottom: 0.5rem;
+}
+
+.detail-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    gap: 1rem;
+}
+
+.detail-item {
+    display: flex;
+    flex-direction: column;
+    gap: 0.25rem;
+}
+
+.detail-label {
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+    font-weight: 500;
+}
+
+.detail-value {
+    font-size: 1rem;
+    color: var(--text-primary);
+    font-weight: 400;
+}
+
+.detail-value.highlight {
+    color: var(--primary-color);
+    font-weight: 600;
+}
+
+.confidence-bar {
+    height: 8px;
+    background: var(--light-bg);
+    border-radius: 4px;
+    overflow: hidden;
+    margin-top: 0.5rem;
+}
+
+.confidence-fill {
+    height: 100%;
+    background: var(--success-color);
+    transition: width 0.3s ease;
+}
+
+.confidence-fill.medium {
+    background: var(--warning-color);
+}
+
+.confidence-fill.low {
+    background: var(--danger-color);
+}
+
+.matched-devices-list {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+
+.matched-device-item {
+    padding: 1rem;
+    background: var(--light-bg);
+    border-radius: 0.375rem;
+    border-left: 4px solid var(--primary-color);
+}
+
+.matched-device-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 0.5rem;
+}
+
+.matched-device-name {
+    font-weight: 600;
+    color: var(--text-primary);
+}
+
+.matched-device-confidence {
+    background: var(--primary-color);
+    color: white;
+    padding: 0.25rem 0.5rem;
+    border-radius: 0.25rem;
+    font-size: 0.875rem;
+}
+
+.matched-device-category {
+    display: inline-block;
+    background: white;
+    padding: 0.25rem 0.5rem;
+    border-radius: 0.25rem;
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+    margin-bottom: 0.5rem;
+}
+
+.matched-device-description {
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+    margin-top: 0.5rem;
+}
+
+.matched-device-method {
+    font-size: 0.75rem;
+    color: var(--text-secondary);
+    margin-top: 0.5rem;
+    font-style: italic;
+}
+
 /* Responsive */
 @media (max-width: 768px) {
     header .container {