* Get a session by ID

* 解析

* Delete a session

* 处理文本 * 更多的扩展语法在此实现（从普通的段落文本中进行解析）

Add a single line (or empty line when called with no argument).

* Advance to the next node

For tool/prompt callbacks: { content: [...] }

For resource callbacks: { contents: [{ uri, text }] }

* Import a portable snapshot. Optionally restore it under a new session ID.

* Load file system state from IndexedDB. * Call once after construction.

* Recursively resolve (or create) subdirectories for a nested path, * then create the file in the final directory. * * e.g. `assets/characters/a.ch

* Get the session manager for external session operations

* Rollback a session by popping the most recent entries off its history stack. * * The top of `history` is the currently displayed node. Popping

* Lazily initialize fs-backed storage in Node.js environment

* Lazily import @capacitor/filesystem to avoid bundling it in web-only builds. * Returns { Filesystem, Directory, Encoding } from the plugin.

* Load a script from markdown content

Conditionally add a pre-formatted block (e.g. memoryPrompt, statePrompt).

* Check if a file exists via IFileSystem

* Get or create a session

* Get current session status

* Save a session