Make the repository's primary source tree genuinely Python

The old tracked TypeScript snapshot has been removed from the repository history and the root  directory is now a Python porting workspace. README and tests now describe and verify the Python-first layout instead of treating the exposed snapshot as the active source tree.

A local archive can still exist outside Git, but the tracked repository now presents only the Python porting surface, related essay context, and OmX workflow artifacts.

Constraint: Tracked history should collapse to a single commit while excluding the archived snapshot from Git
Rejected: Keep the exposed TypeScript tree in tracked history under an archive path | user explicitly wanted only the Python porting repo state in Git
Confidence: medium
Scope-risk: broad
Reversibility: messy
Directive: Keep future tracked additions focused on the Python port itself; do not reintroduce the exposed snapshot into Git history
Tested: python3 -m unittest discover -s tests -v; python3 -m src.main summary; git diff --check
Not-tested: Behavioral parity with the original TypeScript system beyond the current Python workspace surface

src/main.py

@@ -0,0 +1,87 @@
+from __future__ import annotations
+
+import argparse
+
+from .commands import get_command, render_command_index
+from .parity_audit import run_parity_audit
+from .port_manifest import build_port_manifest
+from .query_engine import QueryEnginePort
+from .runtime import PortRuntime
+from .tools import get_tool, render_tool_index
+
+
+def build_parser() -> argparse.ArgumentParser:
+    parser = argparse.ArgumentParser(description='Python porting workspace for the Claude Code rewrite effort')
+    subparsers = parser.add_subparsers(dest='command', required=True)
+    subparsers.add_parser('summary', help='render a Markdown summary of the Python porting workspace')
+    subparsers.add_parser('manifest', help='print the current Python workspace manifest')
+    subparsers.add_parser('parity-audit', help='compare the Python workspace against the local ignored TypeScript archive when available')
+    list_parser = subparsers.add_parser('subsystems', help='list the current Python modules in the workspace')
+    list_parser.add_argument('--limit', type=int, default=32)
+    commands_parser = subparsers.add_parser('commands', help='list mirrored command entries from the archived snapshot')
+    commands_parser.add_argument('--limit', type=int, default=20)
+    commands_parser.add_argument('--query')
+    tools_parser = subparsers.add_parser('tools', help='list mirrored tool entries from the archived snapshot')
+    tools_parser.add_argument('--limit', type=int, default=20)
+    tools_parser.add_argument('--query')
+    route_parser = subparsers.add_parser('route', help='route a prompt across mirrored command/tool inventories')
+    route_parser.add_argument('prompt')
+    route_parser.add_argument('--limit', type=int, default=5)
+    show_command = subparsers.add_parser('show-command', help='show one mirrored command entry by exact name')
+    show_command.add_argument('name')
+    show_tool = subparsers.add_parser('show-tool', help='show one mirrored tool entry by exact name')
+    show_tool.add_argument('name')
+    return parser
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = build_parser()
+    args = parser.parse_args(argv)
+    manifest = build_port_manifest()
+    if args.command == 'summary':
+        print(QueryEnginePort(manifest).render_summary())
+        return 0
+    if args.command == 'manifest':
+        print(manifest.to_markdown())
+        return 0
+    if args.command == 'parity-audit':
+        print(run_parity_audit().to_markdown())
+        return 0
+    if args.command == 'subsystems':
+        for subsystem in manifest.top_level_modules[: args.limit]:
+            print(f'{subsystem.name}\t{subsystem.file_count}\t{subsystem.notes}')
+        return 0
+    if args.command == 'commands':
+        print(render_command_index(limit=args.limit, query=args.query))
+        return 0
+    if args.command == 'tools':
+        print(render_tool_index(limit=args.limit, query=args.query))
+        return 0
+    if args.command == 'route':
+        matches = PortRuntime().route_prompt(args.prompt, limit=args.limit)
+        if not matches:
+            print('No mirrored command/tool matches found.')
+            return 0
+        for match in matches:
+            print(f'{match.kind}\t{match.name}\t{match.score}\t{match.source_hint}')
+        return 0
+    if args.command == 'show-command':
+        module = get_command(args.name)
+        if module is None:
+            print(f'Command not found: {args.name}')
+            return 1
+        print(f'{module.name}\n{module.source_hint}\n{module.responsibility}')
+        return 0
+    if args.command == 'show-tool':
+        module = get_tool(args.name)
+        if module is None:
+            print(f'Tool not found: {args.name}')
+            return 1
+        print(f'{module.name}\n{module.source_hint}\n{module.responsibility}')
+        return 0
+    parser.error(f'unknown command: {args.command}')
+    return 2
+
+
+if __name__ == '__main__':
+    raise SystemExit(main())