fix(ui): fit pipeline timeline without horizontal scroll

15 nodes (3 pre-stage + 11 stage + Completed) exceeded the 1280px main
container's usable width, producing a horizontal scrollbar under the
pipeline on the run page. Widen main to 1440px, tighten per-node min
widths, drop the scrollbar, and split camelCase labels so multi-word
stages ("WaitingReboot", "SpecValidate", "CPUStress") wrap onto two
lines instead of forcing node width.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

internal/web/static/app.css

@@ -44,7 +44,7 @@ a:hover { text-decoration: underline; }
 .topbar .heartbeat { color: var(--text-dim); font-family: var(--mono); font-size: 12px; }
 .topbar .logout-form { margin: 0; }
 
-main { max-width: 1280px; margin: 0 auto; padding: 24px; }
+main { max-width: 1440px; margin: 0 auto; padding: 24px; }
 
 button, .button, .button-secondary {
   appearance: none;
@@ -492,16 +492,16 @@ body.bare main { max-width: none; }
 }
 
 /* ===== Pipeline timeline =====
-   13 nodes (3 pre-stage + 9 stage + Completed). flex:1 on every node
+   15 nodes (3 pre-stage + 11 stage + Completed). flex:1 on every node
-   so they share the full width evenly; overflow-x:auto only kicks in
+   so they share the full width evenly. Multi-word labels
-   on very narrow viewports. */
+   (stageDisplayName in pipeline.templ) wrap on two lines so nodes pack
+   tight without horizontal scroll. */
 .pipeline {
   display: flex;
   align-items: stretch;
   gap: 0;
   width: 100%;
-  overflow-x: auto;
+  padding: 28px 8px 16px;
-  padding: 28px 12px 16px;
   background: #0b0d12;
   border: 1px solid var(--border);
   border-radius: var(--radius);
@@ -512,8 +512,8 @@ body.bare main { max-width: none; }
   align-items: center;
   gap: 6px;
   flex: 1 1 0;
-  min-width: 72px;
+  min-width: 56px;
-  padding: 0 4px;
+  padding: 0 2px;
 }
 .stage-dot {
   width: 28px;
@@ -543,6 +543,7 @@ body.bare main { max-width: none; }
   text-align: center;
   font-weight: 500;
   line-height: 1.2;
+  overflow-wrap: anywhere;
 }
 .stage-node-passed .stage-name { color: var(--text); }
 .stage-node-running .stage-name { color: var(--accent); font-weight: 600; }

internal/web/templates/pipeline.templ

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	"vetting/internal/model"
@@ -250,6 +251,33 @@ func stageDuration(n PipelineNode) string {
 	}
 }
 
+// stageDisplayName turns the internal single-word state/stage identifier
+// into a human-readable label by inserting spaces before interior capital
+// letters. "WaitingReboot" → "Waiting Reboot", "SpecValidate" →
+// "Spec Validate", "CPUStress" → "CPU Stress". The space lets the
+// pipeline node wrap the label onto two lines on narrow layouts instead
+// of forcing horizontal scroll — single-word names ("Inventory",
+// "Completed") pass through unchanged.
+func stageDisplayName(name string) string {
+	var b strings.Builder
+	b.Grow(len(name) + 2)
+	for i, r := range name {
+		if i > 0 && r >= 'A' && r <= 'Z' {
+			prev := rune(name[i-1])
+			// Insert a space at every lower→upper boundary ("Spec|Validate")
+			// and at upper→upper when the next char is lower ("CPU|Stress",
+			// where we split before the S that starts a new word). This
+			// keeps acronyms like "GPU"/"PSU" intact.
+			if (prev >= 'a' && prev <= 'z') ||
+				(prev >= 'A' && prev <= 'Z' && i+1 < len(name) && name[i+1] >= 'a' && name[i+1] <= 'z') {
+				b.WriteByte(' ')
+			}
+		}
+		b.WriteRune(r)
+	}
+	return b.String()
+}
+
 // stageMarker returns the single-char glyph shown in the node's dot.
 // Dots stay colored-via-class; the glyph is redundant-but-helpful.
 func stageMarker(state string) string {
@@ -277,7 +305,7 @@ templ Pipeline(nodes []PipelineNode) {
 			}
 			<div class={ "stage-node", "stage-node-" + n.State }>
 				<div class={ "stage-dot", "stage-dot-" + n.State }>{ stageMarker(n.State) }</div>
-				<div class="stage-name">{ n.Name }</div>
+				<div class="stage-name">{ stageDisplayName(n.Name) }</div>
 				<div class="stage-duration">{ stageDuration(n) }</div>
 			</div>
 		}

internal/web/templates/pipeline_templ.go

@@ -12,6 +12,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
 	"vetting/internal/model"
@@ -258,6 +259,33 @@ func stageDuration(n PipelineNode) string {
 	}
 }
 
+// stageDisplayName turns the internal single-word state/stage identifier
+// into a human-readable label by inserting spaces before interior capital
+// letters. "WaitingReboot" → "Waiting Reboot", "SpecValidate" →
+// "Spec Validate", "CPUStress" → "CPU Stress". The space lets the
+// pipeline node wrap the label onto two lines on narrow layouts instead
+// of forcing horizontal scroll — single-word names ("Inventory",
+// "Completed") pass through unchanged.
+func stageDisplayName(name string) string {
+	var b strings.Builder
+	b.Grow(len(name) + 2)
+	for i, r := range name {
+		if i > 0 && r >= 'A' && r <= 'Z' {
+			prev := rune(name[i-1])
+			// Insert a space at every lower→upper boundary ("Spec|Validate")
+			// and at upper→upper when the next char is lower ("CPU|Stress",
+			// where we split before the S that starts a new word). This
+			// keeps acronyms like "GPU"/"PSU" intact.
+			if (prev >= 'a' && prev <= 'z') ||
+				(prev >= 'A' && prev <= 'Z' && i+1 < len(name) && name[i+1] >= 'a' && name[i+1] <= 'z') {
+				b.WriteByte(' ')
+			}
+		}
+		b.WriteRune(r)
+	}
+	return b.String()
+}
+
 // stageMarker returns the single-char glyph shown in the node's dot.
 // Dots stay colored-via-class; the glyph is redundant-but-helpful.
 func stageMarker(state string) string {
@@ -378,7 +406,7 @@ func Pipeline(nodes []PipelineNode) templ.Component {
 			var templ_7745c5c3_Var8 string
 			templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(stageMarker(n.State))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 279, Col: 77}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 307, Col: 77}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
 			if templ_7745c5c3_Err != nil {
@@ -389,9 +417,9 @@ func Pipeline(nodes []PipelineNode) templ.Component {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var9 string
-			templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(n.Name)
+			templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(stageDisplayName(n.Name))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 280, Col: 36}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 308, Col: 54}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var9))
 			if templ_7745c5c3_Err != nil {
@@ -404,7 +432,7 @@ func Pipeline(nodes []PipelineNode) templ.Component {
 			var templ_7745c5c3_Var10 string
 			templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(stageDuration(n))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 281, Col: 50}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 309, Col: 50}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
 			if templ_7745c5c3_Err != nil {
@@ -458,7 +486,7 @@ func PipelineSection(run *model.Run, nodes []PipelineNode) templ.Component {
 		var templ_7745c5c3_Var12 string
 		templ_7745c5c3_Var12, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("pipeline-%d", run.ID))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 296, Col: 41}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 324, Col: 41}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var12))
 		if templ_7745c5c3_Err != nil {
@@ -471,7 +499,7 @@ func PipelineSection(run *model.Run, nodes []PipelineNode) templ.Component {
 		var templ_7745c5c3_Var13 string
 		templ_7745c5c3_Var13, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("pipeline-%d", run.ID))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 298, Col: 47}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `internal/web/templates/pipeline.templ`, Line: 326, Col: 47}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var13))
 		if templ_7745c5c3_Err != nil {