feat: add log viewer components and fix build issues

- Add LogViewer component with syntax highlighting and auto-scroll
- Add LogControls for play/pause, auto-scroll, refresh, download, clear
- Add LogSearch component with search highlighting
- Add Input UI component
- Fix TypeScript type issues in ProcessCard and types.ts
- Fix XML-RPC client type issues
- Add force-dynamic to layout to prevent SSR issues with client components
- Add mounted state to Navbar for theme toggle hydration
- Add custom 404 page

Components added:
- components/logs/LogViewer.tsx - Main log viewer with real-time display
- components/logs/LogControls.tsx - Control panel for log viewing
- components/logs/LogSearch.tsx - Search input for filtering logs
- components/ui/input.tsx - Reusable input component

Fixes:
- ProcessStateCode type casting in ProcessCard
- XML-RPC client options type (use any to avoid library type issues)
- canStartProcess/canStopProcess type assertions
- Dynamic rendering to prevent SSR hydration issues

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

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

components/process/ProcessCard.tsx

@@ -4,7 +4,7 @@ import { Play, Square, RotateCw, Activity } from 'lucide-react';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
-import { ProcessInfo, getProcessStateClass, formatUptime, canStartProcess, canStopProcess } from '@/lib/supervisor/types';
+import { ProcessInfo, ProcessStateCode, getProcessStateClass, formatUptime, canStartProcess, canStopProcess } from '@/lib/supervisor/types';
 import { useStartProcess, useStopProcess, useRestartProcess } from '@/lib/hooks/useSupervisor';
 import { cn } from '@/lib/utils/cn';
 
@@ -36,7 +36,7 @@ export function ProcessCard({ process }: ProcessCardProps) {
           <Badge
             className={cn(
               'ml-2',
-              getProcessStateClass(process.state),
+              getProcessStateClass(process.state as ProcessStateCode),
               'border px-3 py-1 font-mono text-xs'
             )}
           >
@@ -77,7 +77,7 @@ export function ProcessCard({ process }: ProcessCardProps) {
             size="sm"
             variant="success"
             onClick={handleStart}
-            disabled={!canStartProcess(process.state) || isLoading}
+            disabled={!canStartProcess(process.state as ProcessStateCode) || isLoading}
             className="flex-1"
           >
             <Play className="h-4 w-4" />
@@ -87,7 +87,7 @@ export function ProcessCard({ process }: ProcessCardProps) {
             size="sm"
             variant="warning"
             onClick={handleStop}
-            disabled={!canStopProcess(process.state) || isLoading}
+            disabled={!canStopProcess(process.state as ProcessStateCode) || isLoading}
             className="flex-1"
           >
             <Square className="h-4 w-4" />