fix: reset temperament state in runLogoCommands to prevent frequency corruption across runs

When a program uses Set Temperament, the temperament state persists into subsequent runs even after removing the block. This causes silent pitch corruption where notes play at wrong frequencies.

Root cause: runLogoCommands() resets changeInTemperament but not inTemperament, startingPitch, or noteFrequencies. With the flag false and temperament still set, _getFrequency() uses the stale lookup table.

Fix: Reset all three properties alongside existing BPM resets:

this.synth.inTemperament = "equal";
this.synth.startingPitch = "C4";
this.synth.noteFrequencies = {};