docs(skills): localize 7 skill descriptions to English

Convert description fields in 7 SKILL.md files from Chinese to idiomatic
English: git-commit-push, git-worktree, lina-e2e, lina-feedback,
lina-perf-audit, lina-review, lina-upgrade.

Also includes pre-staged changes:
- refactor: expand AGENTS.md symlink into a standalone file
- refactor(install): rename bootstrap.sh to install.sh; update READMEs
  and install-bootstrap test script accordingly
- docs(lina-doctor): update OpenSpec design, spec, tasks, and PR description
  for the framework bootstrap installer feature
- feat(sqlite-database-support): add OpenSpec change with proposal, design,
  tasks, and incremental specs (dialect abstraction, bootstrap commands,
  cluster deployment mode, plugin cache service, plugin manifest lifecycle)

Author: gqcn

.agents/skills/git-commit-push/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: git-commit-push
-description: 审查当前 Git 工作区变更，根据仓库的提交或 PR 命名规范从实际差异中生成提交信息，在当前分支上提交所有变更并推送到 `origin`。当用户要求"提交"、"推送"、"提交并推送"、"生成提交信息"、"提交当前变更"，或将当前分支变更推送到远程时使用此技能。
+description: Review current Git workspace changes, generate a commit message from actual diffs following the repo's commit or PR naming conventions, commit all changes on the current branch, and push to `origin`. Use when the user asks to "commit", "push", "commit and push", "generate a commit message", "commit current changes", or push the current branch changes to the remote.
 ---
 
 # Git 提交与推送

.agents/skills/git-worktree/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: git-worktree
-description: 为当前任务创建并使用独立的 Git 工作树，在新目录中继续执行任务。当用户要求独立的工作树、隔离的检出、干净的分支目录、更安全的并行变更，或需要全新的工作空间以避免干扰本地已有修改时使用此技能。
+description: Create and switch to an isolated Git worktree for the current task, continuing work in a new directory instead of the original checkout. Use when the user wants an isolated worktree, a clean branch directory, safer parallel changes, or a fresh workspace that won't interfere with existing local modifications.
 ---
 
 # Git 工作树

.agents/skills/lina-e2e/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: lina-e2e
-description: OpenSpec 工作流中的 Playwright E2E 测试用例管理规范。定义测试文件命名（TC{NNNN}）、按模块组织目录、TC ID 分配、文件独立性规则和子断言模式。在 OpenSpec 变更中创建、规划或审查 E2E 测试用例时使用。
+description: Playwright E2E test case management standards for the OpenSpec workflow. Defines file naming conventions (TC{NNNN}), module-based directory layout, TC ID assignment, file isolation rules, and sub-assertion patterns. Use when creating, planning, or reviewing E2E test cases within an OpenSpec change.
 compatibility: 依赖 Playwright。
 ---
 

.agents/skills/lina-feedback/SKILL.md

@@ -1,9 +1,9 @@
 ---
 name: lina-feedback
 description: >-
-  跟踪、修复、验证和测试针对 OpenSpec 变更报告的 Bug、改进点或缺口。
-  当用户报告与现有实现相关的问题、缺陷、Bug 或缺口时，必须使用此技能，
-  即使用户未明确提及"反馈"或 OpenSpec。
+  Track, fix, verify, and test bugs, improvements, or gaps reported against an OpenSpec change.
+  Must be used whenever the user reports issues, defects, bugs, or gaps related to an existing
+  implementation, even if they don't explicitly mention "feedback" or OpenSpec.
 compatibility: 依赖 openspec CLI、lina-e2e 技能、lina-review 技能。
 ---
 

.agents/skills/lina-perf-audit/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: lina-perf-audit
-description: "仅限手动触发。仅在用户明确要求执行 lina-perf-audit 或确认进行全面审计时，才运行 LinaPro 后端 API 性能审计。此工作流会通过 make init/mock 重置数据库、停止并重启服务、安装并启用所有内置插件、添加压力测试数据、启动并发子代理，耗时较长（数十分钟到数小时），且消耗大量 Token。禁止从其他技能、CI、定时任务、Git 钩子或模糊的性能请求中调用。"
+description: "Manual trigger only. Run a comprehensive LinaPro backend API performance audit only when the user explicitly requests lina-perf-audit or confirms a full audit. This workflow resets the database via make init/mock, restarts services, installs and enables all built-in plugins, seeds load-test data, and launches concurrent sub-agents — it takes significant time (tens of minutes to hours) and consumes substantial tokens. Do not invoke from other skills, CI, scheduled tasks, Git hooks, or vague performance requests."
 ---
 
 # LinaPro 性能审计

.agents/skills/lina-review/SKILL.md

@@ -1,9 +1,9 @@
 ---
 name: lina-review
 description: >-
-  OpenSpec 工作流的代码与规范审查。在 /opsx:apply 任务完成后、/opsx:feedback 任务完成后、
-  以及 /opsx:archive 执行前自动触发。当用户请求代码审查、规范合规检查，
-  或通过 /lina-review 显式调用时使用。
+  Code and spec review for the OpenSpec workflow. Automatically triggered after /opsx:apply tasks
+  complete, after /opsx:feedback tasks complete, and before /opsx:archive runs. Also use when the
+  user requests a code review, spec compliance check, or invokes /lina-review explicitly.
 compatibility: 依赖 OpenSpec CLI、GoFrame v2 技能、lina-e2e 技能。
 ---
 

.agents/skills/lina-upgrade/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: lina-upgrade
-description: 通过 AI 引导、脚本驱动的工作流升级 LinaPro 框架或源码插件，覆盖升级、LinaPro、框架和插件任务。
+description: Upgrade the LinaPro framework or source plugins through an AI-guided, script-driven workflow covering framework-wide and per-plugin upgrade tasks.
 ---
 
 **交互语言**：与用户交互的内容语言以用户上下文使用的语言为准，用户使用英文则使用英文，用户使用中文则使用中文。