[guido4096]

Summary

• Add commands for the observed WTC-60 identification and bus-time broadcasts, plus a command for the standard eBUS 07FF sign-of-life message.
• Rename circuit-specific display names to abstract Circuit_2, Circuit_3, and Circuit_4 labels while preserving command keys, telegrams, and field semantics.
• Update the WTC-60 README with the new definitions, generic naming, and capacity requirements.

Why command_manager changes are required

The 07FF sign-of-life telegram has no payload: its master frame declares a data length of zero. CommandManager::updateData() previously returned immediately for commands with no configured fields. That means a passive command could match the telegram prefix, but the update path discarded it before recording a session or invoking the decoded-command log callback. It consequently appeared only as a raw telegram, not as the named Weishaupt/Bus/Sign_of_life command.

This change keeps normal field decoding unchanged and adds a narrow event path for passive commands that intentionally have no fields: it accepts only zero-payload messages, records the timestamp/session, and invokes the existing log callback. It does not create data or publish a fabricated value. Active no-field commands and no-field commands receiving a nonzero payload are ignored. The regression test verifies the named match, empty data, recorded session, log output, and rejection of a payload-bearing variant.

Capacity prerequisite

The complete WTC-60 set now contains 93 commands and uses approximately 6355 bytes for unique keys/names/field names. master currently has a 2048-byte StringPool. In the current setup you cannot deploy all commands, you will to increase the StringPool

Validation

• Parsed all four WTC-60 JSON files; confirmed 93 commands with unique keys and abstract circuit names.
• App host suite passed for this command-manager change (605 assertions across 63 test cases). A clean rebuild in the separate PR worktree was also attempted, but the host harness could not link the local eBUS POSIX bus implementation in this environment.