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>

lib/supervisor/client.ts

@@ -27,7 +27,7 @@ export class SupervisorClient {
   constructor(config: SupervisorClientConfig) {
     this.config = config;
 
-    const clientOptions: xmlrpc.ClientOptions = {
+    const clientOptions: any = {
       host: config.host,
       port: config.port,
       path: '/RPC2',
@@ -49,9 +49,9 @@ export class SupervisorClient {
    */
   private async call<T>(method: string, params: any[] = []): Promise<T> {
     return new Promise((resolve, reject) => {
-      this.client.methodCall(method, params, (error, value) => {
+      this.client.methodCall(method, params, (error: any, value: any) => {
         if (error) {
-          reject(new Error(`XML-RPC Error: ${error.message}`));
+          reject(new Error(`XML-RPC Error: ${error?.message || 'Unknown error'}`));
         } else {
           resolve(value);
         }