fix(crew): detect running sessions started with shell compound commands

IsClaudeRunning now checks for child processes when the pane command is
a shell (bash/zsh). This fixes gt crew start --all killing running crew
members that were started with "export ... && claude ..." commands.

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

internal/tmux/tmux.go

@@ -406,6 +406,43 @@ func (t *Tmux) GetPaneWorkDir(session string) (string, error) {
 	return strings.TrimSpace(out), nil
 }
 
+// GetPanePID returns the PID of the pane's main process.
+func (t *Tmux) GetPanePID(session string) (string, error) {
+	out, err := t.run("list-panes", "-t", session, "-F", "#{pane_pid}")
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(out), nil
+}
+
+// hasClaudeChild checks if a process has a child running claude/node.
+// Used when the pane command is a shell (bash, zsh) that launched claude.
+func hasClaudeChild(pid string) bool {
+	// Use pgrep to find child processes
+	cmd := exec.Command("pgrep", "-P", pid, "-l")
+	out, err := cmd.Output()
+	if err != nil {
+		return false
+	}
+	// Check if any child is node or claude
+	lines := strings.Split(string(out), "\n")
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+		// Format: "PID name" e.g., "29677 node"
+		parts := strings.Fields(line)
+		if len(parts) >= 2 {
+			name := parts[1]
+			if name == "node" || name == "claude" {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // FindSessionByWorkDir finds tmux sessions where the pane's current working directory
 // matches or is under the target directory. Returns session names that match.
 // If processNames is provided, only returns sessions that match those processes.
@@ -597,6 +634,7 @@ func (t *Tmux) IsAgentRunning(session string, expectedPaneCommands ...string) bo
 // IsClaudeRunning checks if Claude appears to be running in the session.
 // Only trusts the pane command - UI markers in scrollback cause false positives.
 // Claude can report as "node", "claude", or a version number like "2.0.76".
+// Also checks for child processes when the pane is a shell running claude via "bash -c".
 func (t *Tmux) IsClaudeRunning(session string) bool {
 	// Check for known command names first
 	if t.IsAgentRunning(session, "node", "claude") {
@@ -608,7 +646,21 @@ func (t *Tmux) IsClaudeRunning(session string) bool {
 		return false
 	}
 	matched, _ := regexp.MatchString(`^\d+\.\d+\.\d+`, cmd)
-	return matched
+	if matched {
+		return true
+	}
+	// If pane command is a shell, check for claude/node child processes.
+	// This handles the case where sessions are started with "bash -c 'export ... && claude ...'"
+	for _, shell := range constants.SupportedShells {
+		if cmd == shell {
+			pid, err := t.GetPanePID(session)
+			if err == nil && pid != "" {
+				return hasClaudeChild(pid)
+			}
+			break
+		}
+	}
+	return false
 }
 
 // IsRuntimeRunning checks if a runtime appears to be running in the session.