docs: revamp GitHub repository presentation

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,41 +1,49 @@
-name: Bug report
-description: 报告可复现的问题（请勿上传 token 或会话正文）
+name: Bug report / 错误报告
+description: Report a reproducible problem. Never upload tokens or conversation text. / 报告可复现问题，请勿上传 token 或会话正文
 title: "[Bug] "
-labels: ["bug"]
+labels: ["bug", "needs triage"]
 body:
   - type: markdown
     attributes:
-      value: "感谢反馈。提交前请移除用户名、项目路径、token 和会话内容。"
+      value: "Thanks for helping improve MacPulse. Remove usernames, project paths, tokens, credentials, and conversation content before submitting. / 感谢反馈，提交前请移除用户名、项目路径、token、凭证与会话内容。"
   - type: input
     id: version
     attributes:
-      label: MacPulse 版本与构建号
+      label: MacPulse version and build / 版本与构建号
       placeholder: "0.9.0 (2)"
     validations:
       required: true
   - type: input
     id: environment
     attributes:
-      label: Mac 与 macOS
+      label: Mac and macOS / 设备与系统
       placeholder: "MacBook Pro M3 Pro / macOS 15.5"
     validations:
       required: true
   - type: textarea
     id: steps
     attributes:
-      label: 复现步骤
+      label: Steps to reproduce / 复现步骤
+      description: Include the smallest reliable sequence. / 请提供最短且可靠的复现步骤。
     validations:
       required: true
   - type: textarea
     id: expected
     attributes:
-      label: 预期与实际结果
+      label: Expected and actual result / 预期与实际结果
     validations:
       required: true
   - type: checkboxes
     id: privacy
     attributes:
-      label: 隐私确认
+      label: Privacy confirmation / 隐私确认
       options:
-        - label: 我已移除 token、会话正文与真实项目路径
+        - label: I removed tokens, credentials, conversation text, usernames, and real project paths. / 我已移除 token、凭证、会话正文、用户名和真实项目路径。
+          required: true
+  - type: checkboxes
+    id: release
+    attributes:
+      label: Release confirmation / 版本确认
+      options:
+        - label: I checked whether this also happens in the latest public release. / 我已确认该问题是否也出现在最新公开版本中。
           required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Security vulnerability / 安全漏洞
+    url: https://github.com/hepinga/MacPulse/security/advisories/new
+    about: Report vulnerabilities privately. Never post credentials in a public issue. / 请私密报告漏洞，不要在公开 Issue 中粘贴凭证。
+  - name: Download the latest release / 下载最新版本
+    url: https://github.com/hepinga/MacPulse/releases/latest
+    about: Check the latest signed public release before reporting an installation issue. / 报告安装问题前，请先核对最新签名公开版本。

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,24 +1,40 @@
-name: Feature request
-description: 提出功能或体验建议
+name: Feature request / 功能建议
+description: Propose a user problem and a focused improvement. / 提出用户问题与聚焦的改进方案
 title: "[Feature] "
-labels: ["enhancement"]
+labels: ["enhancement", "needs triage"]
 body:
+  - type: markdown
+    attributes:
+      value: "Please describe the problem before the solution, and do not include private session content. / 请先描述问题，再描述方案；不要附上私人会话内容。"
   - type: textarea
     id: problem
     attributes:
-      label: 想解决的问题
+      label: Problem to solve / 想解决的问题
     validations:
       required: true
   - type: textarea
     id: proposal
     attributes:
-      label: 建议方案
+      label: Proposed outcome / 建议结果
     validations:
       required: true
   - type: dropdown
     id: area
     attributes:
-      label: 功能区域
-      options: [系统监控, AI 用量, 额度提醒, 清理, Skills, 自动更新, 其他]
+      label: Product area / 功能区域
+      options:
+        - System monitoring / 系统监控
+        - AI usage / AI 用量
+        - Quotas and notifications / 额度与提醒
+        - Cleanup and memory / 清理与内存
+        - Skills
+        - UI and themes / 界面与主题
+        - Website / 官网
+        - Other / 其他
     validations:
       required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered / 考虑过的替代方案
+      description: Optional, but useful for understanding the trade-off. / 可选，用于理解取舍。

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,33 @@
+## What changed / 变更内容
+
+<!-- Describe the user-visible outcome and why this change is needed. / 说明用户可见结果及变更原因。 -->
+
+## Area / 涉及区域
+
+- [ ] System monitoring / 系统监控
+- [ ] AI usage or quota / AI 用量或额度
+- [ ] Cleanup or memory tools / 清理或内存工具
+- [ ] Skills
+- [ ] UI or website / 界面或官网
+- [ ] Documentation or community / 文档或社区
+
+## Verification / 验证
+
+<!-- List the exact commands and manual checks performed. / 列出实际执行的命令与人工检查。 -->
+
+- [ ] `./scripts/test.sh`
+- [ ] `./scripts/build.sh`
+- [ ] Relevant manual checks completed / 已完成相关人工验证
+
+## Privacy and safety / 隐私与安全
+
+- [ ] Screenshots and logs contain no tokens, credentials, usernames, private paths, or conversation text.
+- [ ] 截图与日志不包含 token、凭证、用户名、私人路径或会话正文。
+- [ ] Cleanup/path changes preserve the documented safety invariants, or this PR does not touch them.
+- [ ] 清理/路径改动保持既有安全不变量，或本 PR 未涉及这些逻辑。
+
+## Release impact / 发布影响
+
+- [ ] No release impact / 不影响发布
+- [ ] Requires changelog entry / 需要更新变更记录
+- [ ] Requires signing, notarization, appcast, or website coordination / 需要签名、公证、appcast 或官网协同

.github/labels.yml

@@ -0,0 +1,46 @@
+# Reviewable source of truth for repository labels. Sync these values in GitHub Settings.
+- name: bug
+  color: D73A4A
+  description: Something is not working / 可复现的问题
+- name: enhancement
+  color: A2EEEF
+  description: New feature or improvement / 新功能或改进
+- name: documentation
+  color: 0075CA
+  description: Documentation changes / 文档改进
+- name: privacy
+  color: 6F42C1
+  description: Privacy boundary or local-data handling / 隐私边界或本地数据处理
+- name: security
+  color: B60205
+  description: Security-sensitive work; disclose vulnerabilities privately / 安全相关；漏洞请私密披露
+- name: "area: system"
+  color: C5DEF5
+  description: System metrics, sampling, temperature, fans, or processes
+- name: "area: ai-usage"
+  color: C5DEF5
+  description: Claude Code or Codex usage, tokens, and cost estimates
+- name: "area: quota"
+  color: C5DEF5
+  description: Quota windows, countdowns, and notifications
+- name: "area: cleanup"
+  color: C5DEF5
+  description: Cache cleanup, path safety, and memory release
+- name: "area: skills"
+  color: C5DEF5
+  description: Local Skills discovery and lifecycle
+- name: "area: ui"
+  color: C5DEF5
+  description: Menu bar, popover, dashboard, themes, or notch UI
+- name: "area: website"
+  color: C5DEF5
+  description: Public website or optional community service
+- name: needs triage
+  color: EDEDED
+  description: Awaiting maintainer review / 等待维护者分流
+- name: good first issue
+  color: 7057FF
+  description: Approachable for a first contribution / 适合首次贡献
+- name: help wanted
+  color: 008672
+  description: Maintainers welcome community help / 欢迎社区协助