chore: Add UI components and migration utilities

Additional utilities:

src/llmkit/ui/:
- Terminal UI components
- Design tokens and patterns
- Console helpers
- ASCII logo

migrate.sh:
- Migration script for upgrades

src/llmkit/vector_stores_old.py:
- Legacy vector store implementation

Supporting files for enhanced user experience and development

Author: leebeanbin

.gitignore

@@ -61,3 +61,4 @@ dmypy.json
 
 # Ruff
 .ruff_cache/
+.claude/settings.local.json

migrate.sh

@@ -0,0 +1,56 @@
+#!/bin/bash
+
+cd "$(dirname "$0")"
+
+echo "🔄 Starting migration: llm-model-manager → llmkit"
+echo ""
+
+# 1. Rename directory
+echo "Step 1: Renaming llm_model_manager → llmkit..."
+if [ -d "llm_model_manager" ]; then
+    mv llm_model_manager llmkit
+    echo "   ✅ Directory renamed"
+else
+    echo "   ⚠️  llm_model_manager not found (maybe already renamed?)"
+    if [ -d "llmkit" ]; then
+        echo "   ✅ llmkit directory already exists"
+    fi
+fi
+echo ""
+
+# 2. Clean old cache
+echo "Step 2: Cleaning Python cache..."
+find . -type d -name __pycache__ -exec rm -rf {} + 2>/dev/null || true
+find . -name "*.pyc" -delete 2>/dev/null || true
+echo "   ✅ Cache cleaned"
+echo ""
+
+# 3. Uninstall old package
+echo "Step 3: Uninstalling old packages..."
+pip uninstall -y llm-model-manager 2>/dev/null || echo "   (not installed)"
+pip uninstall -y llmkit 2>/dev/null || echo "   (not installed)"
+echo ""
+
+# 4. Install new package
+echo "Step 4: Installing llmkit in development mode..."
+pip install -e .
+echo ""
+
+# 5. Verify installation
+echo "Step 5: Verifying installation..."
+python -c "from llmkit import get_registry; r = get_registry(); print(f'   ✅ Import works! {len(r.get_available_models())} models found')"
+echo ""
+
+# 6. Test CLI
+echo "Step 6: Testing CLI..."
+llmkit summary
+echo ""
+
+echo "🎉 Migration complete!"
+echo ""
+echo "📝 Next steps:"
+echo "   1. Run tests: pytest"
+echo "   2. Try examples: python examples/basic_usage.py"
+echo "   3. Build package: python -m build"
+echo ""
+echo "📚 See README.md for usage guide"

src/llmkit/ui/__init__.py

@@ -0,0 +1,61 @@
+"""
+Terminal UI Design System
+터미널 기반 제품의 시각 아이덴티티 + UI 패턴
+"""
+from .design_tokens import (
+    ColorTokens,
+    TypographyTokens,
+    SpacingTokens,
+    DesignTokens
+)
+from .components import (
+    Badge,
+    Spinner,
+    ProgressBar,
+    CommandBlock,
+    OutputBlock,
+    Divider,
+    Prompt,
+    StatusIcon
+)
+from .logo import Logo, print_logo
+from .patterns import (
+    SuccessPattern,
+    ErrorPattern,
+    WarningPattern,
+    InfoPattern,
+    EmptyStatePattern,
+    OnboardingPattern
+)
+from .console import get_console, styled_print
+
+__all__ = [
+    # Design Tokens
+    "ColorTokens",
+    "TypographyTokens",
+    "SpacingTokens",
+    "DesignTokens",
+    # Components
+    "Badge",
+    "Spinner",
+    "ProgressBar",
+    "CommandBlock",
+    "OutputBlock",
+    "Divider",
+    "Prompt",
+    "StatusIcon",
+    # Logo
+    "Logo",
+    "print_logo",
+    # Patterns
+    "SuccessPattern",
+    "ErrorPattern",
+    "WarningPattern",
+    "InfoPattern",
+    "EmptyStatePattern",
+    "OnboardingPattern",
+    # Console
+    "get_console",
+    "styled_print",
+]
+

src/llmkit/ui/components.py

@@ -0,0 +1,181 @@
+"""
+CLI/TUI Components
+터미널 UI 컴포넌트
+"""
+from typing import Optional, List, Any
+from rich.console import Console
+from rich.panel import Panel
+from rich.text import Text
+from rich.progress import Progress, SpinnerColumn, TextColumn, BarColumn
+from rich.table import Table
+from rich import box
+from .design_tokens import tokens
+
+
+class Badge:
+    """배지 컴포넌트 [OK], [ERROR] 등"""
+    
+    @staticmethod
+    def success(text: str = "OK") -> str:
+        """성공 배지"""
+        return f"[{tokens.color.bg_success} {tokens.color.success} bold][{text}][/{tokens.color.bg_success} {tokens.color.success} bold]"
+    
+    @staticmethod
+    def error(text: str = "ERROR") -> str:
+        """에러 배지"""
+        return f"[{tokens.color.bg_error} {tokens.color.error} bold][{text}][/{tokens.color.bg_error} {tokens.color.error} bold]"
+    
+    @staticmethod
+    def warning(text: str = "WARN") -> str:
+        """경고 배지"""
+        return f"[{tokens.color.bg_warning} {tokens.color.warning} bold][{text}][/{tokens.color.bg_warning} {tokens.color.warning} bold]"
+    
+    @staticmethod
+    def info(text: str = "INFO") -> str:
+        """정보 배지"""
+        return f"[{tokens.color.bg_info} {tokens.color.info} bold][{text}][/{tokens.color.bg_info} {tokens.color.info} bold]"
+    
+    @staticmethod
+    def custom(text: str, color: str) -> str:
+        """커스텀 배지"""
+        return f"[{color} bold][{text}][/{color} bold]"
+
+
+class StatusIcon:
+    """상태 아이콘"""
+    
+    SUCCESS = "✓"
+    ERROR = "✗"
+    WARNING = "⚠"
+    INFO = "ℹ"
+    LOADING = "⟳"
+    
+    @staticmethod
+    def success() -> str:
+        return f"[{tokens.color.success}]{StatusIcon.SUCCESS}[/{tokens.color.success}]"
+    
+    @staticmethod
+    def error() -> str:
+        return f"[{tokens.color.error}]{StatusIcon.ERROR}[/{tokens.color.error}]"
+    
+    @staticmethod
+    def warning() -> str:
+        return f"[{tokens.color.warning}]{StatusIcon.WARNING}[/{tokens.color.warning}]"
+    
+    @staticmethod
+    def info() -> str:
+        return f"[{tokens.color.info}]{StatusIcon.INFO}[/{tokens.color.info}]"
+
+
+class Divider:
+    """구분선 컴포넌트"""
+    
+    @staticmethod
+    def thin(length: int = 50) -> str:
+        """얇은 구분선"""
+        return "─" * length
+    
+    @staticmethod
+    def thick(length: int = 50) -> str:
+        """두꺼운 구분선"""
+        return "═" * length
+    
+    @staticmethod
+    def double(length: int = 50) -> str:
+        """이중 구분선"""
+        return "═" * length
+    
+    @staticmethod
+    def styled(text: str = "", style: str = "dim") -> str:
+        """스타일 적용 구분선"""
+        return f"[{style}]{Divider.thin()}[/{style}]"
+
+
+class CommandBlock:
+    """명령어 블록 (실행 명령 강조)"""
+    
+    @staticmethod
+    def render(command: str, console: Optional[Console] = None) -> None:
+        """명령어 블록 렌더링"""
+        if console is None:
+            from .console import get_console
+            console = get_console()
+        
+        text = Text()
+        text.append("$ ", style=f"{tokens.color.accent} bold")
+        text.append(command, style=f"{tokens.color.primary} bold")
+        
+        panel = Panel(
+            text,
+            border_style=tokens.color.accent,
+            box=box.ROUNDED,
+            padding=(0, 1)
+        )
+        console.print(panel)
+
+
+class OutputBlock:
+    """출력 블록 (결과 출력 영역)"""
+    
+    @staticmethod
+    def render(content: str, title: Optional[str] = None, console: Optional[Console] = None) -> None:
+        """출력 블록 렌더링"""
+        if console is None:
+            from .console import get_console
+            console = get_console()
+        
+        panel = Panel(
+            content,
+            title=title,
+            border_style=tokens.color.muted,
+            box=box.ROUNDED,
+            padding=(0, 1)
+        )
+        console.print(panel)
+
+
+class Prompt:
+    """프롬프트 컴포넌트 ($, > 같은 입력 시작점)"""
+    
+    @staticmethod
+    def render(prompt_char: str = "$", style: str = None) -> str:
+        """프롬프트 렌더링"""
+        if style is None:
+            style = f"{tokens.color.accent} bold"
+        return f"[{style}]{prompt_char}[/{style}] "
+
+
+class Spinner:
+    """로딩 스피너"""
+    
+    @staticmethod
+    def create(description: str = "Loading...") -> Progress:
+        """스피너 생성"""
+        return Progress(
+            SpinnerColumn(),
+            TextColumn(f"[{tokens.color.info}]{description}[/{tokens.color.info}]"),
+            console=get_console(),
+            transient=True
+        )
+
+
+class ProgressBar:
+    """진행률 표시"""
+    
+    @staticmethod
+    def create(total: int, description: str = "Progress") -> Progress:
+        """진행률 바 생성"""
+        return Progress(
+            TextColumn(f"[{tokens.color.info}]{description}[/{tokens.color.info}]"),
+            BarColumn(),
+            TextColumn("[progress.percentage]{task.percentage:>3.0f}%"),
+            console=get_console(),
+            transient=False
+        )
+
+
+def get_console() -> Console:
+    """Console 인스턴스 반환"""
+    from .console import get_console as _get_console
+    return _get_console()
+

src/llmkit/ui/console.py

@@ -0,0 +1,27 @@
+"""
+Console Utilities
+터미널 콘솔 유틸리티
+"""
+from rich.console import Console
+from typing import Optional
+
+# 전역 Console 인스턴스
+_console: Optional[Console] = None
+
+
+def get_console() -> Console:
+    """Console 인스턴스 반환 (싱글톤)"""
+    global _console
+    if _console is None:
+        _console = Console()
+    return _console
+
+
+def styled_print(text: str, style: str = ""):
+    """스타일 적용 출력"""
+    console = get_console()
+    if style:
+        console.print(f"[{style}]{text}[/{style}]")
+    else:
+        console.print(text)
+