feat(cli-run): add streaming delta, think block rendering, and rich tool headers

Adds message.part.delta event handling for real-time streaming output,
reasoning/think block display with in-place updates, per-agent profile
colors, padded text output, and semantic tool headers with icons.

🤖 Generated with [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/cli/run/event-formatting.ts

@@ -4,6 +4,7 @@ import type {
   EventPayload,
   MessageUpdatedProps,
   MessagePartUpdatedProps,
+  MessagePartDeltaProps,
   ToolExecuteProps,
   ToolResultProps,
   SessionErrorProps,
@@ -93,6 +94,15 @@ export function logEventVerbose(ctx: RunContext, payload: EventPayload): void {
       break
     }
 
+    case "message.part.delta": {
+      const deltaProps = props as MessagePartDeltaProps | undefined
+      const field = deltaProps?.field ?? "unknown"
+      const delta = deltaProps?.delta ?? ""
+      const preview = delta.slice(0, 80).replace(/\n/g, "\\n")
+      console.error(pc.dim(`${sessionTag} message.part.delta (${field}): "${preview}${delta.length > 80 ? "..." : ""}"`))
+      break
+    }
+
     case "message.updated": {
       const msgProps = props as MessageUpdatedProps | undefined
       const role = msgProps?.info?.role ?? "unknown"