ui: show raw and decoded comparisons together, with labelled columns (v2.7.15)

Content mismatches in profile checks and snapshot comparisons used to
replace the raw expected/actual pair with the decoded per-field table
whenever a decoder could see a difference.

- The raw comparison is always shown first (heading + expected/actual
  rows); the decoded per-field table follows when the decoder finds
  differing fields.
- The decoded table gets a column-header row carrying the same
  expected/actual labels (profile/snapshot names in a comparison) that
  the raw rows and the FCI diff table use.
- Matching decoded values keep the 'Decoded values match; raw bytes
  differ' note and show no decoded table.
- tests: ef_decode report test extended (raw + decoded + column headers,
  custom labels, matching-decoded note); help EN/RU.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pysim-simple-server"
-version = "2.7.14"
+version = "2.7.15"
 description = "HTTP REST server wrapping pysim for the SIMple PWA"
 requires-python = ">=3.8"
 # pysim is a git-only dependency installed explicitly by setup.bat/setup.sh.