NethVoice: Fix profile reload

[tommaso-ascani]

After reverting two recent PRs, nethcti-middleware can keep stale users.json data and return 404 for valid extension endpoints.

Update ns8-nethvoice to reload profiles after FreePBX regenerates CTI config, and update nethcti-middleware to retry extension lookup after a profile reload before returning 404.

[tommaso-ascani]

Test Cases

Profile reload after extension changes

1. Log in to CTI with a user that has a WebRTC extension, for example extension 202.
2. In FreePBX, create or update the user's WebRTC/NethLink/mobile extension mapping.
3. Apply/reload the FreePBX configuration.
4. From the browser DevTools Network tab, check the extension lookup request:

GET /api/extensions/<main_extension>/webrtc

Example:

GET /api/extensions/202/webrtc

Expected Result

The request returns 200 with the WebRTC extension data:

{
  "extension": "202",
  "mainextension": "202",
  "type": "webrtc",
  "username": "<username>"
}

Actual Result Before Fix

The request could return 404 because nethcti-middleware still had stale profile/user data in memory:

{
  "error": "extension type webrtc not found for main extension 202",
  "mainextension": "202",
  "type": "webrtc"
}

Summary/transcription history filters

1. Log in to CTI with a user that has the satellite_stt permission enabled.
2. Make sure Satellite DB is unavailable, or available but without the transcripts table initialized.
3. Open the browser DevTools and go to the Network tab.
4. Open History in CTI.
5. Check the Network requests related to summary/transcription:

GET /api/history/calls?...&artifact=summary
GET /api/history/calls?...&artifact=transcription
POST /api/summary/statuses

Expected Result

The requests return 503 with a clear Satellite DB/schema error.

Actual Result Before Fix

The requests returned 500 with raw DB errors, for example:

relation "transcripts" does not exist
sql: connection is already closed

[Amygos]

Testing release nethesis/ns8-nethvoice 1.6.7-testing.57