fix(tui): scope session list to current directory (#8836)

[shoaibansari5398]

What does this PR do?

Fixes #8836 - Scopes the session list (/sessions command) to the current working directory.

Problem: When using /sessions or opening the session list dialog, it displayed ALL sessions from ALL directories/projects instead of only sessions that belong to the current working directory.

How did you verify your code works?

Root Cause: The dialog-session-list.tsx component only filtered sessions by parentID === undefined (to exclude child sessions) but didn't filter by the session's directory field.

Solution: Added a directory filter to only show sessions where session.directory === currentDirectory:

diff const options = createMemo(() => { const today = new Date().toDateString()

• const currentDirectory = sync.data.path.directory || process.cwd() return sessions()

•  .filter((x) => x.parentID === undefined)
  

•  .filter((x) => x.parentID === undefined && x.directory === currentDirectory)
  

How did you verify your code works?

Code review confirmed that Session.Info schema has a directory field that stores the working directory when a session is created The filter uses the same path source (sync.data.path.directory) that's used elsewhere in the TUI (e.g., useDirectory context) The || process.cwd() fallback ensures the filter still works if sync.data.path.directory is not yet populated