Add Path Mapping UI with Simple Mapping and Regex Rules modes

- Updated frontend/types.ts with new types: ReplacementRule, PathMappingRules, PathMappingMode, PathMappingConfig
- Replaced StrategySelector.tsx with new UI featuring:
  - Simple Mapping tab for local/cloud path pairs
  - Regex Rules tab with 4 rule groups (localPre, localPost, remotePre, remotePost)
  - MappingGroupEditor sub-component for editing rule lists
- Updated App.tsx to use PathMappingConfig state instead of RegexReplacement[]
- Updated api.ts to handle new PathMappingConfig structure
- Updated backend config.py with path_mapping field support
- Added /api/settings/path-mapping endpoint in main.py

Co-authored-by: Koha9 <36852125+Koha9@users.noreply.github.com>

app/main.py

@@ -92,9 +92,28 @@ class RegexRule(BaseModel):
     replacement: str = ""
 
 
+class ReplacementRule(BaseModel):
+    search: str
+    replace: str = ""
+
+
+class RegexRulesGroup(BaseModel):
+    local_pre: list[ReplacementRule] = []
+    local_post: list[ReplacementRule] = []
+    remote_pre: list[ReplacementRule] = []
+    remote_post: list[ReplacementRule] = []
+
+
+class PathMappingPayload(BaseModel):
+    mode: str = "SIMPLE"
+    simple: list[ReplacementRule] = []
+    regex: RegexRulesGroup = RegexRulesGroup()
+
+
 class SyncSettingsResponse(BaseModel):
     sync_mode: str
     path_rules: list[RegexRule]
+    path_mapping: dict | None = None
     local_path: str
     library_name: str | None = None
     server_url: str | None = None
@@ -352,6 +371,7 @@ async def get_settings():
     return SyncSettingsResponse(
         sync_mode=server_config.sync_mode,
         path_rules=rules,
+        path_mapping=server_config.path_mapping,
         local_path=server_config.local_path,
         library_name=server_config.library_name,
         server_url=server_config.url,
@@ -380,6 +400,22 @@ async def update_regex_rules(payload: RegexRulePayload):
     return {"rules": payload.rules}
 
 
+@app.put("/api/settings/path-mapping")
+async def update_path_mapping(payload: PathMappingPayload):
+    path_mapping_dict = {
+        "mode": payload.mode,
+        "simple": [{"search": rule.search, "replace": rule.replace} for rule in payload.simple],
+        "regex": {
+            "local_pre": [{"search": rule.search, "replace": rule.replace} for rule in payload.regex.local_pre],
+            "local_post": [{"search": rule.search, "replace": rule.replace} for rule in payload.regex.local_post],
+            "remote_pre": [{"search": rule.search, "replace": rule.replace} for rule in payload.regex.remote_pre],
+            "remote_post": [{"search": rule.search, "replace": rule.replace} for rule in payload.regex.remote_post],
+        }
+    }
+    server_config.set_and_save_config(path_mapping=path_mapping_dict)
+    return {"path_mapping": server_config.path_mapping}
+
+
 @app.put("/api/settings/library")
 async def update_library(payload: LibrarySelection):
     server_config.set_and_save_config(library_name=payload.library_name)