Round 1 findings and fixes, all previously uncommitted:
- FXProcessor per-slot DSP history repair (HEAD does not compile without it)
- SynthVoice::getModulationValue, editor control-lock guard
- ExactCompare.h naming the deliberate exact float comparisons
- KnobLookAndFeel replacing the never-installed SerumLookAndFeel
- 55 first-party compiler warnings to 0
- AGENT.md renamed to AGENTS.md across Source/
- graft repository context graph and its hooks
- JANITOR_TASKS.md and UI_UX_AUDIT.md records
Add bounds, finiteness, and range clamping to addConnection and
addAssignment. Validate ValueTree types and property values in
fromValueTree before inserting, rejecting non-integer indices and
unknown source names. Run toValueTree through a validated copy to
ensure persisted state is always within constraints.
biggy