feat: add load average bar visualization (4/l hotkey)0.12.0

Adds a new teal bar type showing /proc/loadavg data per host.
The 1-min average fills from the top downward; yellow and white
1px reference lines mark the 5-min and 15-min averages. A global
loadPeak tracker (floor 2.0, slow per-frame decay) keeps the scale
meaningful across hosts and after spikes. Toggle with 4 or l;
persisted to ~/.loadbarsrc as showload=1.

Bump version to 0.12.0.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/internal/display/hittest.go b/internal/display/hittest.go
index fe88471..fd2a218 100644
--- a/internal/display/hittest.go
+++ b/internal/display/hittest.go
@@ -13,6 +13,7 @@ const (
 	barCPU barKind = iota
 	barMem
 	barNet
+	barLoad
 )
 
 // barDescriptor describes a single bar's position, host, and type.
@@ -26,7 +27,7 @@ type barDescriptor struct {
 // buildBarMap replays the same host/bar iteration as drawBars to produce
 // a slice of bar descriptors with their screen rectangles.
 func buildBarMap(snap map[string]*stats.HostStats, cfg *config.Config, state *runState) []barDescriptor {
-	numBars := countBars(snap, state.cpuMode, state.showMem, state.showNet)
+	numBars := countBars(snap, state.cpuMode, state.showMem, state.showNet, state.showLoad)
 	maxPerRow := cfg.MaxBarsPerRow
 	hosts := sortedHosts(snap)
 
@@ -66,6 +67,15 @@ func buildBarMap(snap map[string]*stats.HostStats, cfg *config.Config, state *ru
 			})
 			barIndex++
 		}
+		if state.showLoad {
+			x, y, w, bh := barRect(state.winW, state.winH, numBars, maxPerRow, barIndex)
+			bars = append(bars, barDescriptor{
+				host: host,
+				kind: barLoad,
+				rect: sdl.Rect{X: x, Y: y, W: w, H: bh},
+			})
+			barIndex++
+		}
 	}
 	return bars
 }