feat: matrix-style subagent connection lines + smart window layout

Subagent windows now visually connect to their parent session tabs with
glowing matrix-green lines that pulse with life. Windows automatically
arrange in a non-overlapping grid, and each shows its origin with a
clickable "from [session]" header.

Watch your AI agents spawn and dance across the screen, tethered to
their creators by neon threads of digital consciousness.

Changes:
- Matrix green (#00ff41) connection lines with glow effect
- Smart grid positioning prevents window overlap
- Smaller default window size (420x350) for better density
- Auto-sizing activity columns for cleaner logs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -21,7 +21,7 @@ When user says "COM": 1) Increment version in BOTH `package.json` AND `CLAUDE.md
 
 Claudeman is a Claude Code session manager with a web interface and autonomous Ralph Loop. It spawns Claude CLI processes via PTY, streams output in real-time via SSE, and supports scheduled/timed runs.
 
-**Version**: 0.1370 (must match `package.json`)
+**Version**: 0.1371 (must match `package.json`)
 
 **Tech Stack**: TypeScript (ES2022/NodeNext, strict mode), Node.js, Fastify, Server-Sent Events, node-pty
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claudeman",
-  "version": "0.1370",
+  "version": "0.1371",
   "description": "The missing control plane for Claude Code - run 20 autonomous agents with real-time monitoring and session persistence",
   "type": "module",
   "main": "dist/index.js",
@@ -55,8 +55,9 @@
     "@types/uuid": "^10.0.0",
     "@vitest/coverage-v8": "^4.0.17",
     "agent-browser": "^0.6.0",
+    "playwright": "^1.58.0",
     "tsx": "^4.15.0",
-    "typescript": "^5.5.0",
+    "typescript": "^5.9.3",
     "vitest": "^4.0.17"
   },
   "engines": {

src/web/public/app.js

@@ -5098,10 +5098,18 @@ class ClaudemanApp {
     const agent = this.subagents.get(agentId);
     if (!agent) return;
 
-    // Calculate final position (cascade from top-left)
+    // Calculate final position - grid layout to avoid overlaps
     const windowCount = this.subagentWindows.size;
-    const finalX = 50 + (windowCount % 5) * 30;
-    const finalY = 100 + (windowCount % 5) * 30;
+    const windowWidth = 420;
+    const windowHeight = 350;
+    const gap = 20;
+    const startX = 50;
+    const startY = 120;
+    const maxCols = Math.floor((window.innerWidth - startX - 50) / (windowWidth + gap)) || 1;
+    const col = windowCount % maxCols;
+    const row = Math.floor(windowCount / maxCols);
+    const finalX = startX + col * (windowWidth + gap);
+    const finalY = startY + row * (windowHeight + gap);
 
     // Get parent tab position for spawn animation
     const parentTab = agent.parentSessionId

src/web/public/styles.css

@@ -3819,10 +3819,10 @@ kbd {
 
 .subagent-window {
   position: fixed;
-  width: 500px;
-  height: 400px;
-  min-width: 300px;
-  min-height: 200px;
+  width: 420px;
+  height: 350px;
+  min-width: 280px;
+  min-height: 180px;
   background: var(--bg-card);
   border: 1px solid var(--border);
   border-radius: 8px;
@@ -3980,17 +3980,19 @@ kbd {
 }
 
 .connection-line {
-  stroke: var(--accent);
+  stroke: #00ff41;
   stroke-width: 2;
   stroke-dasharray: 5 3;
   fill: none;
-  opacity: 0.5;
-  transition: opacity 0.2s, stroke-width 0.2s;
+  opacity: 0.6;
+  filter: drop-shadow(0 0 3px #00ff41);
+  transition: opacity 0.2s, stroke-width 0.2s, filter 0.2s;
 }
 
 .connection-line:hover {
-  opacity: 0.8;
+  opacity: 1;
   stroke-width: 3;
+  filter: drop-shadow(0 0 6px #00ff41);
 }
 
 .connection-line.spawning-line {