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/agent-profile-colors.ts

@@ -0,0 +1,28 @@
+import type { OpencodeClient } from "@opencode-ai/sdk"
+import { normalizeSDKResponse } from "../../shared"
+
+interface AgentProfile {
+  name?: string
+  color?: string
+}
+
+export async function loadAgentProfileColors(
+  client: OpencodeClient,
+): Promise<Record<string, string>> {
+  try {
+    const agentsRes = await client.app.agents()
+    const agents = normalizeSDKResponse(agentsRes, [] as AgentProfile[], {
+      preferResponseOnMissingData: true,
+    })
+
+    const colors: Record<string, string> = {}
+    for (const agent of agents) {
+      if (!agent.name || !agent.color) continue
+      colors[agent.name] = agent.color
+    }
+
+    return colors
+  } catch {
+    return {}
+  }
+}