HTM-2016: Create a separate SseEventBus bean for the viewer so viewers don't get administrative broadcasts

[mprins]

• check if it works and add a test (we can check and compare keep-alive messages, as these are different between admin and viewer)
• Add a note to the readme / documentation

Note this will merge to the feature branch: #1672

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA 6119432.

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Scanned Files

None

[codecov]

Codecov Report

❌ Patch coverage is 65.21739% with 8 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...g/tailormap/api/configuration/TailormapConfig.java	28%	2 Missing and 6 partials ⚠️

@@                                     Coverage Diff                                      @@
##             HTM-1960_Custom_extract_functionality_for_layer_attributes   #1728   +/-   ##
============================================================================================
- Coverage                                                            77%     77%   -0%     
  Complexity                                                          146     146           
============================================================================================
  Files                                                               162     162           
  Lines                                                              8125    8143   +18     
  Branches                                                            748     754    +6     
============================================================================================
- Hits                                                               6200    6190   -10     
- Misses                                                             1495    1517   +22     
- Partials                                                            430     436    +6     

Files with missing lines	Coverage Δ	Complexity Δ
...map/api/controller/ServerSentEventsController.java	100% <100%> (ø)	0 <0> (ø)
...troller/admin/ServerSentEventsAdminController.java	100% <100%> (+19%)	0 <0> (ø)
...ilormap/api/service/CreateLayerExtractService.java	62% <100%> (ø)	0 <0> (ø)
...g/tailormap/api/configuration/TailormapConfig.java	56% <28%> (-44%)	0 <0> (ø)

... and 3 files with indirect coverage changes

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[github-actions]

Test Results

485 tests  +1   484 ✅ +1   10m 19s ⏱️ + 2m 57s
 58 suites ±0     1 💤 ±0 
 58 files   ±0     0 ❌ ±0 

Results for commit 6119432. ± Comparison against base commit 8ded6a3.

♻️ This comment has been updated with latest results.

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.