2. dodany plik SECURITY.md
3. dodany plik .python-version
4. dodany plik .github/dependabot.yml
5. poprawione pliki README.md i .gitignore
6. dodana poprawiona implementacja adapterów, parserów i generatorów dla APRS, CoT i Mesh
7. dodane testy dla adapterów CoT-Mesh

…p model.py as the single runtime event language.

Changes:
- unified RX entrypoints so each protocol now uses a single parser module
- unified TX entrypoints so each protocol now uses a single encoder module
- removed legacy transitional files:
  - aprs/generator.py
  - cot/cot_parser.py
  - cot/cot_encoder.py
  - mesh/decoder.py
  - mesh/mesh_decoder.py
  - mesh/mesh_encoder.py
  - aprs/decoder.py
  - sartrack/decoder.py
  - cot/decoder.py
- updated imports across adapters, tests and package exports
- verified TX paths do not build outbound payloads from raw RX data
- removed raw propagation from TX-side event clones where it was unnecessary
- improved docstrings/comments around model, state, parser and GUI layers
- unified operator-facing event naming in GUI/state store
- updated README to match the current repository structure and event pipeline

Architecture after this change:
- model.py is the single runtime language for router/adapters
- canonical.py remains a normalization helper for parser/encoder layers
- parser.py handles RX normalization
- encoder.py handles TX shaping
- adapter.py handles transport/session logic

Validation:
- unittest suite passes (24 tests)
- py_compile checks pass