chore: batch update - cleanup ghost commands, ccw-help index refresh, CLI session/orchestrator enhancements, skill minor fixes

- Add cleanup-ghost-commands.mjs script
- Refresh ccw-help index files (remove stale entries)
- CLI session manager: add instruction assembler and launch registry
- Frontend: orchestrator plan builder, property panel, dashboard toolbar updates
- Flow executor and type updates
- Minor fixes across multiple skills and commands

ccw/src/core/services/cli-instruction-assembler.ts

@@ -0,0 +1,37 @@
+// ========================================
+// CLI Instruction Assembler
+// ========================================
+// Assembles the final sendText string based on CLI type and instruction type.
+
+export type InstructionType = 'prompt' | 'skill' | 'command';
+
+/**
+ * Assemble the text to send to a CLI interactive session.
+ *
+ * - prompt  → raw content text
+ * - skill   → CLI-specific skill prefix (claude: /, codex: $, others: fallback to prompt)
+ * - command → raw content text (CLI native command)
+ */
+export function assembleInstruction(
+  cliTool: string,
+  instructionType: InstructionType,
+  content: string,
+  skillName?: string,
+): string {
+  if (instructionType === 'prompt' || instructionType === 'command') {
+    return content;
+  }
+
+  // instructionType === 'skill'
+  const name = skillName ?? '';
+
+  switch (cliTool) {
+    case 'claude':
+      return `/${name} ${content}`;
+    case 'codex':
+      return `$${name} ${content}`;
+    default:
+      // Other CLIs don't support skill syntax — fallback to plain prompt
+      return content;
+  }
+}