Reconciles two independent lines of work: main cherry-picked and then
extended dev/jappel's build-script/config-portability/rename-tab/
COM-port fixes, additionally fixing a config-loss bug (rebuild wiped
the config when it lived in the install dir -- moved to roaming
%APPDATA% instead) and adding free-text notes per action plus a
frameless resizable window. dev/jappel keeps its .mcp.json registration
and docs/ reference tree, which main deliberately left out.
Conflict resolutions favored main's versions where the two sides solved
the same problem (config location, build deploy target, COM-port
release, tab rename) since main's fixes were validated against a real
rebuild-wipes-config incident. docs/architecture.md and
docs/data-model.md updated to describe the resulting %APPDATA% config
path and the note field.
Human-facing reference documentation, split from AGENTS.md's agent-facing
domain rules and bug history (which stays there, not duplicated here):
- docs/architecture.md: layer diagram, module responsibilities, config
storage location, the three GUI modes, and the port-exclusivity /
multi-process caveats around concurrent access
- docs/data-model.md: the combined and legacy JSON formats, the binary
SDeviceConfig/SDeviceProfile/SMacroTable NVM layout byte-for-byte, action
types, LED fields, macro-slot conventions, button grid geometry
- docs/protocol.md: the 8-byte serial packet format, command/event tables,
the read/write/status-poll flows, connection lifecycle, and error states
README.md now links to all three from a new "Dokumentation" section, and
AGENTS.md's outdated "docs/ tree isn't warranted yet" note is removed now
that it exists on explicit user request.
