[Feature request] Restore tab order on startup

Is there an existing issue for this?

• I have searched the existing issues

Description of the Issue

I usually have a lot of tabs opened, but work with a small subset of them on a given task, switching between the last 2 or 3 visited tabs (using CTRL-TAB).
If I close Notepadd++ and reopen it, it reopens the last tab, but the order of the other tabs is lost. If I navigate using CTRL-TAB, it opens the first tab of the document list instead of what was my "previous" tab.
Since I have a lot of tabs, finding the other tabs I worked with last is tiresome.

Describe the solution you'd like.

The tab order when cycling through tabs (using CTRL-TAB and SHIFT-CTRL-TAB) should be saved and restored when exiting and starting Notepad++.

Debug Information

Notepad++ v8.8.1   (64-bit)
Build time : May  3 2025 - 18:41:09
Scintilla/Lexilla included : 5.5.6/5.4.4
Boost Regex included : 1_85
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line : 
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
Periodic Backup : ON
Placeholders : OFF
Scintilla Rendering Mode : SC_TECHNOLOGY_DEFAULT (0)
Multi-instance Mode : monoInst
File Status Auto-Detection : cdEnabledNew (for current file/tab only)
Dark Mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 22H2
OS Build : 19045.5854
Current ANSI codepage : 1252
Plugins : 
    mimeTools (3.1)
    NppConverter (4.6)
    NppExport (0.4)
    XMLTools (3.1.1.13)

Anything else?

No response

Start by tracing how Notepad++ restores open tabs on startup and how CTRL-TAB and SHIFT-CTRL-TAB determine cycling order. No files or tests are named in the issue, so locate the session-restoration and tab-navigation entry points first. Done means the cycling order is preserved across exit and restart in both directions.