fix: move tree-sitter back to base deps (pre-built wheels available)

tree-sitter and tree-sitter-python provide pre-built wheels for
Windows/Mac/Linux on Python 3.10-3.12, so no compiler needed.
AST engine is now always installed with base package.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

install.ps1

@@ -88,15 +88,6 @@ if (-not $installed) {
     exit 1
 }
 
-# 可选：安装 AST 增强
-Write-Info "尝试安装 AST 增强（可选，需要 C 编译器）..."
-& $pythonCmd -m pip install "kwcode[ast]" --quiet 2>&1 | Out-Null
-if ($LASTEXITCODE -eq 0) {
-    Write-Info "AST 调用图引擎已启用（代码定位更精准）"
-} else {
-    Write-Info "AST 增强跳过（无编译器），使用 LLM 定位（功能不受影响）"
-}
-
 # ── Step 4: 提示配置模型 ─────────────────────────────────────
 Write-Step "模型配置提示..."
 Write-Info "KwCode 支持任何 OpenAI 兼容 API（Ollama / DeepSeek / Qwen 等）"

install.sh

@@ -95,14 +95,6 @@ if [ "$INSTALLED" -eq 0 ]; then
     exit 1
 fi
 
-# 可选：安装 AST 增强
-info "尝试安装 AST 增强（可选，需要 C 编译器）..."
-if "$PYTHON_CMD" -m pip install "kwcode[ast]" --quiet 2>/dev/null; then
-    info "AST 调用图引擎已启用（代码定位更精准）"
-else
-    info "AST 增强跳过（无编译器），使用 LLM 定位（功能不受影响）"
-fi
-
 # ── Step 3: 提示配置模型 ─────────────────────────────────────
 step "模型配置提示..."
 info "KwCode 支持任何 OpenAI 兼容 API（Ollama / DeepSeek / Qwen 等）"

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "kwcode"
-version = "1.0.7"
+version = "1.0.8"
 description = "KwCode - Local-model coding agent with MoE expert pipeline"
 requires-python = ">=3.10"
 readme = "README.md"
@@ -14,7 +14,6 @@ classifiers = [
     "Development Status :: 4 - Beta",
     "Environment :: Console",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
@@ -33,14 +32,14 @@ dependencies = [
     "pyyaml>=6.0",
     "rank-bm25>=0.2.2",
     "prompt-toolkit>=3.0.0",
+    "tree-sitter>=0.23.0",
+    "tree-sitter-python>=0.23.0",
 ]
 
 [project.optional-dependencies]
 local = ["llama-cpp-python>=0.2.90"]
-ast = ["tree-sitter>=0.23.0", "tree-sitter-python>=0.23.0"]
 full = [
     "kwcode[local]",
-    "kwcode[ast]",
 ]
 dev = [
     "pytest>=7.0.0",