feat(ipuaro): add working demo project examples

Added comprehensive demo project showcasing ipuaro capabilities:

New Files:
- examples/demo-project/: Complete TypeScript demo application
  - src/: User management, auth, validation, logging (336 LOC)
  - tests/: Vitest unit tests for UserService
  - Configuration: package.json, tsconfig.json, .ipuaro.json

Demo Features:
- UserService with CRUD operations
- AuthService with login/logout/verify
- Validation utilities (email, password)
- Logger utility with multiple log levels
- TypeScript types and interfaces
- Intentional TODOs (2) and FIXMEs (1) for tool demonstration

Documentation:
- README.md: Detailed usage guide with example queries
- EXAMPLE_CONVERSATIONS.md: Realistic conversation scenarios
- Tool demonstration scenarios (bug fix, refactoring, features)
- Workflow examples (security audit, optimization, code review)

Updated:
- packages/ipuaro/README.md: Added Quick Start section linking to examples

Project Statistics:
- 12 files total
- 336 lines of TypeScript code
- 7 source modules demonstrating various patterns
- Full test coverage examples
- Demonstrates all 18 tools capabilities

This completes the "Examples working" requirement for v1.0.0

packages/ipuaro/examples/demo-project/src/utils/validation.ts

@@ -0,0 +1,28 @@
+/**
+ * Validation utilities
+ */
+
+export function isValidEmail(email: string): boolean {
+    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
+    return emailRegex.test(email)
+}
+
+export function isStrongPassword(password: string): boolean {
+    // TODO: Add more sophisticated password validation
+    return password.length >= 8
+}
+
+export function sanitizeInput(input: string): string {
+    // FIXME: This is a basic implementation, needs XSS protection
+    return input.trim().replace(/[<>]/g, "")
+}
+
+export class ValidationError extends Error {
+    constructor(
+        message: string,
+        public field: string
+    ) {
+        super(message)
+        this.name = "ValidationError"
+    }
+}