Parse semantics ids for channels and group objects

[farmio]

This parses functional blocks ("knx:fb") of device channels and DPAs ("knx:dpa") of group objects as strings.

cc @ richardpolzer

[Copilot]

Pull request overview

This pull request extends the KNX project parsing pipeline to extract additional semantic metadata from application program XML and expose it in the parsed project output.

Changes:

• Parse Semantics attributes for Channels (functional blocks) and ComObjectRefs (DPAs) in the application program loader.
• Propagate parsed semantics into internal models and into the final KNXProject output structure.
• Update JSON stubs to include the new output fields (dpas, functional_blocks).

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
xknxproject/xml/parser.py	Adds dpas and functional_blocks to the final transformed output.
xknxproject/util.py	Introduces helpers to parse semantic functional blocks and DPAs from XML Semantics.
xknxproject/models/models.py	Adds model fields and wiring to carry semantics through merging/resolution.
xknxproject/models/knxproject.py	Extends output TypedDicts with dpas and functional_blocks.
xknxproject/loader/application_program_loader.py	Parses Semantics for channels and com object refs during XML load.
test/resources/stubs/*.json	Updates expected parsed-project stubs with the new fields.

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[codecov]

Codecov Report

❌ Patch coverage is 95.12195% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.51%. Comparing base (e19af03) to head (915c6b2).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
xknxproject/models/models.py	85.71%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #603      +/-   ##
==========================================
+ Coverage   95.17%   96.51%   +1.34%     
==========================================
  Files          22       22              
  Lines        1284     1320      +36     
==========================================
+ Hits         1222     1274      +52     
+ Misses         62       46      -16     

Files with missing lines	Coverage Δ
xknxproject/loader/application_program_loader.py	100.00% <100.00%> (ø)
xknxproject/models/knxproject.py	100.00% <100.00%> (ø)
xknxproject/util.py	97.29% <100.00%> (+1.29%)	⬆️
xknxproject/xml/parser.py	93.38% <ø> (ø)
xknxproject/models/models.py	95.57% <85.71%> (+3.92%)	⬆️

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