style(scheduler): rename scheduler event handlers

src/core/apu/Noise.zig

@@ -128,7 +128,7 @@ pub fn setNr44(self: *Self, fs: *const FrameSequencer, byte: u8) void {
     self.cnt = new;
 }
 
-pub fn channelTimerOverflow(self: *Self, late: u64) void {
+pub fn onNoiseEvent(self: *Self, late: u64) void {
     self.lfsr.onLfsrTimerExpire(self.poly, late);
 
     self.sample = 0;

src/core/apu/Tone.zig

@@ -58,7 +58,7 @@ pub fn tickEnvelope(self: *Self) void {
     self.env_dev.tick(self.envelope);
 }
 
-pub fn channelTimerOverflow(self: *Self, late: u64) void {
+pub fn onToneEvent(self: *Self, late: u64) void {
     self.square.onSquareTimerExpire(Self, self.freq, late);
 
     self.sample = 0;

src/core/apu/ToneSweep.zig

@@ -71,7 +71,7 @@ pub fn tickEnvelope(self: *Self) void {
     self.env_dev.tick(self.envelope);
 }
 
-pub fn channelTimerOverflow(self: *Self, late: u64) void {
+pub fn onToneSweepEvent(self: *Self, late: u64) void {
     self.square.onSquareTimerExpire(Self, self.freq, late);
 
     self.sample = 0;

src/core/apu/Wave.zig

@@ -116,7 +116,7 @@ pub fn setNr34(self: *Self, fs: *const FrameSequencer, byte: u8) void {
     self.freq = new;
 }
 
-pub fn channelTimerOverflow(self: *Self, late: u64) void {
+pub fn onWaveEvent(self: *Self, late: u64) void {
     self.wave_dev.onWaveTimerExpire(self.freq, self.select, late);
 
     self.sample = 0;