fix(agents): tighten skills-tab intro and drop redundant import hint (#3265)

Three small UI cleanups on the agent Skills tab:

- The blue "Importing creates a workspace copy that your team can edit
  and reuse" callout was visual clutter — drop it (and the Info icon
  import that it relied on).
- The intro paragraph conflated two things: the workspace-skills concept
  (applies to every runtime) and the Allow-locally-installed-skills
  toggle (only honoured by Claude Code and Codex; verified — none of
  copilot/cursor/gemini/opencode/openclaw/hermes/pi/kimi/kiro read
  agent.SkillsLocal). Rewrite the intro to only describe the main
  concept; the toggle's own local_hint_on/off strings still carry the
  Claude/Codex caveat where it belongs.
- The trimmed intro now fits one line, so flip the header row from
  items-start to items-center so the text sits on the same baseline as
  the "Add skill" button instead of clinging to its top edge.

packages/views/agents/components/tabs/skills-tab.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useState } from "react";
-import { FileText, Info, Plus, Trash2 } from "lucide-react";
+import { FileText, Plus, Trash2 } from "lucide-react";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { toast } from "sonner";
 import type { Agent, AgentSkillsLocal } from "@multica/core/types";
@@ -76,7 +76,7 @@ export function SkillsTab({
 
   return (
     <div className="space-y-4">
-      <div className="flex items-start justify-between gap-3">
+      <div className="flex items-center justify-between gap-3">
         <p className="text-xs text-muted-foreground">
           {t(($) => $.tab_body.skills.intro)}
         </p>
@@ -92,13 +92,6 @@ export function SkillsTab({
         </Button>
       </div>
 
-      <div className="flex items-start gap-2 rounded-md border border-info/20 bg-info/5 px-3 py-2.5">
-        <Info className="mt-0.5 h-3.5 w-3.5 shrink-0 text-info" />
-        <p className="text-xs text-muted-foreground">
-          {t(($) => $.tab_body.skills.import_hint)}
-        </p>
-      </div>
-
       <SkillsLocalToggle
         value={currentSkillsLocal}
         onChange={handleSkillsLocalChange}

packages/views/locales/en/agents.json

@@ -298,9 +298,8 @@
       "save_failed_toast": "Failed to save custom arguments"
     },
     "skills": {
-      "intro": "Workspace skills assigned to this agent. For Claude Code and Codex, the host machine's user-global skill directory is merged by default — switch the toggle below off to isolate this agent from those host-machine skills. Other runtimes ignore this setting.",
+      "intro": "Workspace skills assigned to this agent. Every runtime loads them.",
       "add_action": "Add skill",
-      "import_hint": "Importing creates a workspace copy that your team can edit and reuse.",
       "local_label": "Allow locally installed skills",
       "local_hint_off": "Off — for Claude Code and Codex, the agent ignores the host machine's user-global skill directory (~/.claude/skills/, ~/.codex/skills/). Recommended for shared agents — a broken local skill on one operator's machine cannot crash this agent. Other runtimes ignore this setting.",
       "local_hint_on": "On (default) — for Claude Code and Codex, the host machine's user-global skill directory is merged alongside workspace skills. Other runtimes ignore this setting.",

packages/views/locales/zh-Hans/agents.json

@@ -292,9 +292,8 @@
       "save_failed_toast": "保存自定义参数失败"
     },
     "skills": {
-      "intro": "分配给该智能体的工作区 skill。对 Claude Code 与 Codex，默认会同时合并本机用户级 skill 目录 —— 把下方开关关闭可以让该智能体与本机用户级 skill 隔离。其它运行时会忽略此设置。",
+      "intro": "分配给该智能体的工作区 skill。所有运行时都会加载。",
       "add_action": "添加 skill",
-      "import_hint": "导入会在工作区创建一份副本，团队可以编辑和复用。",
       "local_label": "允许使用本机已安装的 Skill",
       "local_hint_off": "关闭 —— 对 Claude Code 与 Codex，智能体会忽略本机用户级 skill 目录（~/.claude/skills/、~/.codex/skills/）。推荐用于共享智能体 —— 团队成员机器上有问题的本机 skill 不会拖崩这个智能体。其它运行时会忽略此设置。",
       "local_hint_on": "开启（默认）—— 对 Claude Code 与 Codex，运行时会同时合并本机用户级 skill 目录。其它运行时会忽略此设置。",