AL Language extension enters a perpetual loading/spinning state when opening a multi-root

1. Describe the bug
The AL Language extension enters a perpetual loading/spinning state when opening a multi-root .code-workspace that spans two repositories: a documentation-only repository (opened as ".") and an AL source repository (opened as a sibling path). The extension never completes initialization ΓÇö IntelliSense, diagnostics, and CodeLens are unavailable.

2. To Reproduce

Steps to reproduce the behavior:

1. Check out both repositories side-by-side:

   <customer>-docs/          ← documentation repo (MkDocs, no app.json)
   <customer>/               ← AL source repo
   

2. Open the workspace file located in the documentation repo:

   {
     "folders": [
       { "path": "." },
       { "path": "../<customer>" }
     ],
     "settings": {
       "al.enableCodeAnalysis": true,
       "al.codeAnalyzers": ["${CodeCop}", "${UICop}", "${PerTenantExtensionCop}"],
       "al.ruleSetPath": "ruleset.json"
     }
   }
   

   • "." ΓåÆ Documentation repository ΓÇö no app.json at root (MkDocs site, markdown only)
   • "../<customer>" ΓåÆ AL source repository ΓÇö contains 3 AL projects nested under subfolders:

   Subfolder	App ID	platform / application	AL files
   W1/<customer>.w1	2bb1a09a-…	26.0.0.0 / 26.0.0.0	~31
   BE/<customer>.be	3fe87366-…	26.0.0.0 / 26.0.0.0	~5
   W1/<customer>.w1.Test	8b7b806d-…	depends on W1 + MS test libs	~1

3. Observe the AL Language extension status bar item.

4. Wait ΓÇö the spinner never stops and the extension never becomes ready.

3. Expected behavior
The AL Language extension completes loading for all 3 AL projects found in the "../<customer>" folder and provides IntelliSense, diagnostics, and CodeLens normally.

4. Actual behavior
The AL Language extension status bar item shows a perpetual loading/spinning indicator. [Attach screenshot or AL output channel log here.]

5. Versions:

• AL Language: 17.0.2273547
• Visual Studio Code: 1.127.0 (x64)
• Business Central Version: 28.1
• List of Visual Studio Code extensions installed:
  • ms-dynamics-smb.al@17.0.2273547
• Operating System:
  • Windows
  • Linux
  • MacOS

Final Checklist

• Search the issue repository to ensure you are reporting a new issue
• Reproduce the issue after disabling all extensions except the AL Language extension
• Simplify your code around the issue to better isolate the problem
  Internal work item: AB#642076

Start by reproducing the issue with the documented multi-root .code-workspace and inspect the AL output channel and status bar behavior during project discovery. Compare the documentation-only root with the sibling AL repository containing the three nested projects. Done means loading completes and IntelliSense, diagnostics, and CodeLens work for all three AL projects.