chore: regenerate stale .pi-map.md / .pi-map.index.md project maps

Project map had drifted: claimed recharts unused (was used), ObservabilityPage.tsx
exists (refactored to service-tabs/), missed JellyfinNowPlayingWidget +
authentik/backups service types. Regenerate to reflect post-change reality:
new Qbittorrent/LineSeriesChart/Prometheus{Gauge,Mean}Widget files,
service_data.py/qbittorrent_store.py, canonical prometheus-charting +
service-storage specs, archived changes.

backend/src/media_library_viewer_api/clients/.pi-map.md

@@ -4,28 +4,30 @@ dir: backend/src/media_library_viewer_api/clients
 index: backend/src/media_library_viewer_api/clients/.pi-map.index.md
 
 ## role
-Provides HTTP and command execution client wrappers for integrating with external media services (Jellyfin, Jellyseerr) and performing remote/local filesystem inspection.
+Provides HTTP and command-line client wrappers for integrating with external media services (Jellyfin, Authentik, Jellyseerr, qBittorrent) and executing local/remote filesystem operations.
 ## files
 - __init__.py | Swaps the position of two tmux panes within a window or between windows | dep: tmux, sh
+- authentik.py | Provides a client wrapper around the Authentik REST API for browsing and searching the user directory with pagination. | exp: class:AuthentikClient, method:__init__(self, base_url: str, api_token: str, timeout), call:base_url.rstrip, call:self.base_url.endswith, call:requests.Session, call:self.session.headers.update, raise:ValueError, method:get(self, path: str, **params: Any) → Any, call:params.items, call:logger.debug, call:sorted, call:clean_params.keys, call:self.session.get, call:response.raise_for_status, call:logger.warning, call:response.json, raise:requests.HTTPError, method:users(self, search, page, page_size) → dict[str, Any], call:self.get, call:isinstance, call:logger.warning, call:type, call:payload.get, call:int, call:pagination.get, call:logger.info, call:len | dep: logging, typing, requests
 - jellyfin.py | Provides a reusable, framework-agnostic HTTP client wrapper for the Jellyfin/Emby API with methods for browsing users, libraries, media items, and sessions. | exp: class:JellyfinClient, method:__init__(self, base_url: str, api_key: str, timeout), call:base_url.rstrip, call:self.base_url.endswith, call:requests.Session, call:self.session.headers.update, raise:ValueError, method:get(self, path: str, **params: Any) → Any, call:params.items, call:logger.debug, call:sorted, call:clean_params.keys, call:self.session.get, call:response.raise_for_status, call:logger.warning, call:response.json, raise:requests.HTTPError, method:users(self) → list[dict[str, Any]], call:self.get, call:logger.info, call:len, method:libraries(self, user_id: str) → list[dict[str, Any]], call:self.get(f"/Users/{user_id}/Views").get, call:logger.info, call:len, method:items(self, user_id: str, parent_id, start_index, limit, search, include_item_types, recursive, sort_by, sort_order) → dict[str, Any], call:logger.debug, call:self.get, call:str(recursive).lower, method:item_count(self, user_id: str, include_item_types: str, parent_id) → int, call:self.get, call:int, call:response.get, call:logger.debug, method:media_counts(self, user_id: str) → dict[str, int], call:self.item_count, method:library_item_counts(self, user_id: str, libraries: list[dict[str, Any]]) → list[dict[str, Any]], call:lib.get, call:self.item_count, call:results.append, method:sessions(self, active_within_seconds) → list[dict[str, Any]], call:self.get, call:cast, call:isinstance, method:active_sessions(self, active_within_seconds) → list[dict[str, Any]], call:self.sessions, call:session.get, call:logger.info, call:len, method:image_url(self, item_id: str, image_type) → str | dep: logging, typing, requests
 - jellyseerr.py | HTTP client wrapper for the Jellyseerr REST API to fetch user data and enrich Jellyfin user information | exp: class:JellyseerrClient, method:__init__(self, base_url: str, api_key: str, timeout), call:base_url.rstrip, call:self.base_url.endswith, call:requests.Session, call:self.session.headers.update, raise:ValueError, method:get(self, path: str, **params: Any) → Any, call:params.items, call:logger.debug, call:sorted, call:clean_params.keys, call:self.session.get, call:response.raise_for_status, call:logger.warning, call:response.json, raise:requests.HTTPError, method:absolute_url(self, path: str | None) → str, call:path.startswith, method:jellyfin_users(self) → list[dict[str, Any]], call:self.get, call:isinstance, call:logger.info, call:len, call:payload.get, method:users(self, page_size) → list[dict[str, Any]], call:max, call:int, call:self.get, call:isinstance, call:payload.get, call:results.extend, call:page_info.get, call:logger.debug, call:len, call:logger.info | dep: logging, typing, requests
 - local.py | Provides a local command execution client that mirrors remote SSH helpers to run POSIX shell commands, list directories, stat paths, and run ffprobe on the API host for built-in local monitoring. | exp: class:CommandResult, class:LocalCommandClient, method:__init__(self, timeout), method:run(self, command: str, timeout) → CommandResult, call:logger.debug, call:subprocess.run, call:CommandResult, call:logger.warning, call:result.stderr.strip, call:result.stdout.strip, method:list_dir(self, path: str) → CommandResult, call:shlex.quote, call:self.run, method:stat_path(self, path: str) → CommandResult, call:shlex.quote, call:self.run, method:ffprobe_json(self, path: str) → dict[str, object], call:shlex.quote, call:self.run, call:json.loads, raise:RuntimeError | dep: json, logging, posixpath, shlex, subprocess, dataclasses
+- qbittorrent.py | Provides a minimal read-only client for the qBittorrent Web API to fetch sync/maindata using authenticated requests. | exp: class:QbittorrentClient, method:__init__(self, base_url: str, username: str, password: str, timeout) → None, call:base_url.rstrip, call:self.base_url.endswith, call:requests.Session, raise:ValueError, method:_login(self) → None, call:self._session.post, call:resp.raise_for_status, call:resp.text.strip, call:logger.info, raise:RuntimeError, method:_get(self, path: str, **params: Any) → dict[str, Any], call:self._login, call:self._session.get, call:logger.debug, call:resp.raise_for_status, call:resp.json, method:maindata(self) → dict[str, Any], call:self._get | dep: logging, typing, requests
 - ssh.py | Provides an SSH client wrapper for remote filesystem inspection and media analysis using paramiko, with POSIX shell command execution and host key management. | exp: class:CommandResult, class:RemoteSSHClient, method:__init__(self, host: str, username: str, port, key_filename, private_key, private_key_passphrase, password, known_hosts_path, timeout), raise:ValueError, method:connect(self) → paramiko.SSHClient, call:paramiko.SSHClient, call:client.load_system_host_keys, call:Path, call:bool, call:has_known_host, call:known_hosts_file.is_file, call:client.load_host_keys, call:client.set_missing_host_key_policy, call:paramiko.RejectPolicy, call:paramiko.AutoAddPolicy, call:self._load_private_key, call:client.connect, call:str(exc).lower, call:known_hosts_file.parent.mkdir, call:client.save_host_keys, raise:RuntimeError, method:close(self) → None, call:self._client.close, method:run(self, command: str, timeout) → CommandResult, call:self.connect, call:shlex.quote, call:logger.debug, call:client.exec_command, call:stdout.channel.recv_exit_status, call:CommandResult, call:stdout.read().decode, call:stderr.read().decode, call:logger.warning, call:result.stderr.strip, call:result.stdout.strip, method:list_dir(self, path: str) → CommandResult, call:shlex.quote, call:self.run, call:logger.info, method:stat_path(self, path: str) → CommandResult, call:shlex.quote, call:self.run, call:logger.info, method:ffprobe_json(self, path: str) → dict[str, Any], call:shlex.quote, call:self.run, call:logger.info, call:json.loads, raise:RuntimeError | dep: json, logging, posixpath, shlex, dataclasses, io, pathlib, typing, paramiko, media_library_viewer_api.services.known_hosts
 ## arch
-Client-wrapper pattern with framework-agnostic abstractions; parallel local/remote execution strategies via paramiko SSH and local subprocess; centralized REST API communication modules.
+Adapter/gateway pattern where each client encapsulates external API or protocol communication behind a uniform interface, isolating transport-level concerns (REST, SSH, local shell) from business logic.
 ## tags
-call:logger.info, call:logger.debug, call:self.get, call:shlex.quote, error, host, call:self.run, init
+call:logger.info, error, call:logger.debug, client, call:self.get, init, call:shlex.quote, status
 ## symbols
+- AuthentikClient
 - JellyfinClient
 - JellyseerrClient
 - CommandResult
 - LocalCommandClient
+- QbittorrentClient
 - RemoteSSHClient
 - __init__
-- get
-- users
 ## workflows
 - change clients behavior
-  read: __init__.py, jellyfin.py, jellyseerr.py
+  read: __init__.py, authentik.py, jellyfin.py
 ## dirty
 -