feat: complete Phase 1 - Full Log Viewer implementation

Phase 1 Complete: Log Viewer with Real-time Monitoring
======================================================

Features Added:
- Real-time log viewer with syntax highlighting (ERROR, WARNING, INFO)
- Play/Pause controls for auto-refresh
- Auto-scroll with user scroll detection
- Search and filter functionality with highlighting
- Process selector (all processes + supervisord main log)
- Stdout/Stderr log type switching
- Download logs to file
- Clear logs (process-specific or main log)
- Responsive layout with proper height handling

API Routes Added:
- GET /api/supervisor/logs - Read main supervisord log
- DELETE /api/supervisor/logs - Clear main log
- DELETE /api/supervisor/processes/[name]/logs - Clear process logs
- POST /api/supervisor/processes/logs/clear-all - Clear all logs

Hooks Added:
- useMainLog() - Query main supervisord log with auto-refresh
- useClearMainLog() - Mutation to clear main log
- useClearProcessLogs() - Mutation to clear process logs
- useClearAllLogs() - Mutation to clear all process logs

Components:
- LogViewer - Displays logs with syntax highlighting and search
- LogControls - Control panel with play/pause, auto-scroll, actions
- LogSearch - Search input with clear button
- Full logs page implementation with process/log type selection

UX Improvements:
- Color-coded log levels (red for errors, yellow for warnings, cyan for info)
- Search term highlighting in logs
- Auto-scroll with "Scroll to bottom" button when paused
- Confirmation dialogs for destructive actions
- Loading states and error handling
- Download logs with timestamped filenames

This completes the most requested feature (log viewing) with production-ready
functionality including real-time tailing, search, and management capabilities.

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

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

app/api/supervisor/processes/logs/clear-all/route.ts

@@ -0,0 +1,21 @@
+import { NextResponse } from 'next/server';
+import { createSupervisorClient } from '@/lib/supervisor/client';
+
+// POST - Clear all process logs
+export async function POST() {
+  try {
+    const client = createSupervisorClient();
+    const results = await client.clearAllProcessLogs();
+    return NextResponse.json({
+      success: true,
+      message: 'All process logs cleared',
+      results
+    });
+  } catch (error: any) {
+    console.error('Supervisor clear all logs error:', error);
+    return NextResponse.json(
+      { error: error.message || 'Failed to clear all logs' },
+      { status: 500 }
+    );
+  }
+}