feat(cli): sync folders with remote paths

- Store synced folder locations in file_path instead of embedding them in file names.
- Add ignore rules from .nanoshareignore and repeatable sync --ignore flags.
- Adopt existing remote files only after SHA-256 verification.
- Move adopted remotes with metadata updates instead of uploading duplicates.
- Bump NanoShare to 1.23.0 and the standalone CLI to 0.2.0.

routes/api/link.py

@@ -12,6 +12,8 @@ from __future__ import annotations
 import base64
 import os
 
+from pathlib import PurePosixPath
+
 from quart import current_app
 
 from my_modules.app.setup import LIMITER
@@ -24,6 +26,14 @@ RPC_SCOPES = ('files', 'mesh')
 
 router = Router('picoshare')
 
+def _safe_file_path(value: str) -> str:
+  raw = (value or '').replace('\\', '/')
+  parts = [
+    part for part in PurePosixPath(raw).parts
+    if part not in ('', '.', '..', '/')
+  ]
+  return '/'.join(parts)
+
 def _user_id(ctx):
   if ctx.principal is None:
     raise Unauthorized('authentication required')
@@ -47,10 +57,12 @@ async def files_upload(params, ctx):
   else:
     raise InvalidParams('provide text or content_b64')
 
-  file_name = params.get('file_name') or iso_stamp_filename('mesh', default_ext)
+  file_name = PurePosixPath(str(params.get('file_name') or iso_stamp_filename('mesh', default_ext)).replace('\\', '/')).name
+  file_path = _safe_file_path(str(params.get('file_path') or ''))
   storage_id = await current_app.convex.send_to_storage(data=data, content_type=content_type)
   file_record = await current_app.convex.add_file(
     file_name=file_name,
+    file_path=file_path,
     file_size=format_size(len(data)),
     note=params.get('note', ''),
     content_type=content_type,
@@ -59,7 +71,7 @@ async def files_upload(params, ctx):
     user_id=user_id,
   )
   file_id = file_record.get('file_id') if isinstance(file_record, dict) else None
-  return {'file_id': file_id, 'file_name': file_name, 'size': len(data), 'content_type': content_type}
+  return {'file_id': file_id, 'file_name': file_name, 'file_path': file_path, 'size': len(data), 'content_type': content_type}
 
 @router.method('files.list')
 async def files_list(params, ctx):
@@ -85,12 +97,13 @@ async def files_info(params, ctx):
 @router.method('files.update')
 async def files_update(params, ctx):
   file_id = params.get('file_id')
-  file_name = params.get('file_name')
+  file_name = PurePosixPath(str(params.get('file_name') or '').replace('\\', '/')).name
   if not file_id or not file_name:
     raise InvalidParams('file_id and file_name are required')
   await current_app.convex.update_file(
     file_id=file_id,
     file_name=file_name,
+    file_path=_safe_file_path(str(params.get('file_path') or '')),
     note=params.get('note', ''),
     expires_at=ensure_utc(parse_expires(params.get('expires', ''))),
     user_id=_user_id(ctx),