[FedeB2160]

First of three PRs for #24: package details and the source of every row.

Details

Details of highlighted package is in the context menu of all three lists. The Install list had no context menu until now. The item shows winget's own text in the themed dialog:

• list --id X -e --details for an installed package (scope, installer type, location);
• show --id X -e --source S for the catalogue part (description, publisher, homepage, licence, release notes), when the row has a source. ARP-only programs have none.

Nothing is parsed (ADR 0021). winget translates its labels (Editore:, Licenza:, Ambito installazione:), so extracting fields would need one parser per language and would break silently when a translation changes.

The read is one background job behind Test-WinGetBusy and the busy state, like an export (ADR 0003). The item is disabled while busy, like the pin items. The dialog's text box now scrolls (MaxHeight="480"), so a long manifest no longer grows the window off the screen.

Source

WgtRow has a Source:

• Search without the Store runs with --source winget, so the source is winget.
• Search with the Store: the source is the last column when it has no :. Match values always carry one (Tag: 7zip), source names never do. Checked against winget 1.29.380.
• list: the last column, not the fourth. Disponibile only appears when something has an update.
• upgrade: the fifth column.

The Install list shows a SOURCE column. Install passes --source "<Source>" when the row has one. Without it, install --id X -e also queries the Store over the network. Updates and Installed are unchanged.

After the Sandbox test

• The Store is searched on its own. With MS Store ticked, a single search over every source with --count 25 hid the Store: since winget 1.29 REST results are no longer sorted to the top, and "spotify" found 33 winget packages with the Store app 34th. Now there are two searches in the same job: winget (--count 25), then msstore (--count 10), with the Store results appended. The source of a row is the one that was queried; no column is read for it. A Store that does not answer, as in the Sandbox (0x8A15003B), leaves the winget results and logs why. -Live checks "spotify": 25 winget results, then 1 msstore.
• Web addresses in the details open with a click. Show-AppDialog -Links shows a read-only RichTextBox, still selectable, with one Hyperlink per address. The link handler moved to Add-LinkHandler, and the popup gets one too.

Tests

• Test-InvokeWinGet.ps1:
  • source from four search shapes, list with 5 columns and an ARP row, and upgrade;
  • Get-WinGetDetails runs the right commands for installed / ARP / catalogue rows;
  • the details text is cleaned of spinner frames and keeps its indentation.
• Test-Ui.ps1:
  • the SOURCE column, and --source passed only when the row has one;
  • the Details item in all three menus, disabled while busy;
  • a full details cycle through a stub winget, with the popup intercepted: the busy state is taken, then released, and the title names the package;
  • the dialog scrolls.
• -Live: Get-WinGetDetails on 7zip.7zip against the real winget (38 lines).

Both suites pass offline, and Test-Ui.ps1 -Live passes. The dialog was rendered with the real 7-Zip text in both themes.

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