feat(codexlens): add CodexLens code indexing platform with incremental updates

- Add CodexLens Python package with SQLite FTS5 search and tree-sitter parsing
- Implement workspace-local index storage (.codexlens/ directory)
- Add incremental update CLI command for efficient file-level index refresh
- Integrate CodexLens with CCW tools (codex_lens action: update)
- Add CodexLens Auto-Sync hook template for automatic index updates on file changes
- Add CodexLens status card in CCW Dashboard CLI Manager with install/init buttons
- Add server APIs: /api/codexlens/status, /api/codexlens/bootstrap, /api/codexlens/init

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

codex-lens/src/codexlens/parsers/__init__.py

@@ -0,0 +1,8 @@
+"""Parsers for CodexLens."""
+
+from __future__ import annotations
+
+from .factory import ParserFactory
+
+__all__ = ["ParserFactory"]
+

codex-lens/src/codexlens/parsers/factory.py

@@ -0,0 +1,154 @@
+"""Parser factory for CodexLens.
+
+The project currently ships lightweight regex-based parsers per language.
+They can be swapped for tree-sitter based parsers later without changing
+CLI or storage interfaces.
+"""
+
+from __future__ import annotations
+
+import re
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Dict, List, Optional, Protocol
+
+from codexlens.config import Config
+from codexlens.entities import IndexedFile, Symbol
+
+
+class Parser(Protocol):
+    def parse(self, text: str, path: Path) -> IndexedFile: ...
+
+
+@dataclass
+class SimpleRegexParser:
+    language_id: str
+
+    def parse(self, text: str, path: Path) -> IndexedFile:
+        symbols: List[Symbol] = []
+        if self.language_id == "python":
+            symbols = _parse_python_symbols(text)
+        elif self.language_id in {"javascript", "typescript"}:
+            symbols = _parse_js_ts_symbols(text)
+        elif self.language_id == "java":
+            symbols = _parse_java_symbols(text)
+        elif self.language_id == "go":
+            symbols = _parse_go_symbols(text)
+        else:
+            symbols = _parse_generic_symbols(text)
+
+        return IndexedFile(
+            path=str(path.resolve()),
+            language=self.language_id,
+            symbols=symbols,
+            chunks=[],
+        )
+
+
+class ParserFactory:
+    def __init__(self, config: Config) -> None:
+        self.config = config
+        self._parsers: Dict[str, Parser] = {}
+
+    def get_parser(self, language_id: str) -> Parser:
+        if language_id not in self._parsers:
+            self._parsers[language_id] = SimpleRegexParser(language_id)
+        return self._parsers[language_id]
+
+
+_PY_CLASS_RE = re.compile(r"^\s*class\s+([A-Za-z_]\w*)\b")
+_PY_DEF_RE = re.compile(r"^\s*def\s+([A-Za-z_]\w*)\s*\(")
+
+
+def _parse_python_symbols(text: str) -> List[Symbol]:
+    symbols: List[Symbol] = []
+    current_class_indent: Optional[int] = None
+    for i, line in enumerate(text.splitlines(), start=1):
+        if _PY_CLASS_RE.match(line):
+            name = _PY_CLASS_RE.match(line).group(1)
+            current_class_indent = len(line) - len(line.lstrip(" "))
+            symbols.append(Symbol(name=name, kind="class", range=(i, i)))
+            continue
+        def_match = _PY_DEF_RE.match(line)
+        if def_match:
+            name = def_match.group(1)
+            indent = len(line) - len(line.lstrip(" "))
+            kind = "method" if current_class_indent is not None and indent > current_class_indent else "function"
+            symbols.append(Symbol(name=name, kind=kind, range=(i, i)))
+            continue
+        if current_class_indent is not None:
+            indent = len(line) - len(line.lstrip(" "))
+            if line.strip() and indent <= current_class_indent:
+                current_class_indent = None
+    return symbols
+
+
+_JS_FUNC_RE = re.compile(r"^\s*(?:export\s+)?function\s+([A-Za-z_$][\w$]*)\s*\(")
+_JS_CLASS_RE = re.compile(r"^\s*(?:export\s+)?class\s+([A-Za-z_$][\w$]*)\b")
+
+
+def _parse_js_ts_symbols(text: str) -> List[Symbol]:
+    symbols: List[Symbol] = []
+    for i, line in enumerate(text.splitlines(), start=1):
+        func_match = _JS_FUNC_RE.match(line)
+        if func_match:
+            symbols.append(Symbol(name=func_match.group(1), kind="function", range=(i, i)))
+            continue
+        class_match = _JS_CLASS_RE.match(line)
+        if class_match:
+            symbols.append(Symbol(name=class_match.group(1), kind="class", range=(i, i)))
+    return symbols
+
+
+_JAVA_CLASS_RE = re.compile(r"^\s*(?:public\s+)?class\s+([A-Za-z_]\w*)\b")
+_JAVA_METHOD_RE = re.compile(
+    r"^\s*(?:public|private|protected|static|\s)+[\w<>\[\]]+\s+([A-Za-z_]\w*)\s*\("
+)
+
+
+def _parse_java_symbols(text: str) -> List[Symbol]:
+    symbols: List[Symbol] = []
+    for i, line in enumerate(text.splitlines(), start=1):
+        class_match = _JAVA_CLASS_RE.match(line)
+        if class_match:
+            symbols.append(Symbol(name=class_match.group(1), kind="class", range=(i, i)))
+            continue
+        method_match = _JAVA_METHOD_RE.match(line)
+        if method_match:
+            symbols.append(Symbol(name=method_match.group(1), kind="method", range=(i, i)))
+    return symbols
+
+
+_GO_FUNC_RE = re.compile(r"^\s*func\s+(?:\([^)]+\)\s+)?([A-Za-z_]\w*)\s*\(")
+_GO_TYPE_RE = re.compile(r"^\s*type\s+([A-Za-z_]\w*)\s+(?:struct|interface)\b")
+
+
+def _parse_go_symbols(text: str) -> List[Symbol]:
+    symbols: List[Symbol] = []
+    for i, line in enumerate(text.splitlines(), start=1):
+        type_match = _GO_TYPE_RE.match(line)
+        if type_match:
+            symbols.append(Symbol(name=type_match.group(1), kind="class", range=(i, i)))
+            continue
+        func_match = _GO_FUNC_RE.match(line)
+        if func_match:
+            symbols.append(Symbol(name=func_match.group(1), kind="function", range=(i, i)))
+    return symbols
+
+
+_GENERIC_DEF_RE = re.compile(r"^\s*(?:def|function|func)\s+([A-Za-z_]\w*)\b")
+_GENERIC_CLASS_RE = re.compile(r"^\s*(?:class|struct|interface)\s+([A-Za-z_]\w*)\b")
+
+
+def _parse_generic_symbols(text: str) -> List[Symbol]:
+    symbols: List[Symbol] = []
+    for i, line in enumerate(text.splitlines(), start=1):
+        class_match = _GENERIC_CLASS_RE.match(line)
+        if class_match:
+            symbols.append(Symbol(name=class_match.group(1), kind="class", range=(i, i)))
+            continue
+        def_match = _GENERIC_DEF_RE.match(line)
+        if def_match:
+            symbols.append(Symbol(name=def_match.group(1), kind="function", range=(i, i)))
+    return symbols
+