docs: reorganize component guide structure and indexes

Update documentation rules for GUIDE.md files to keep higher-level
guides focused on constraints, conventions, and indexes. Add base and
section component guides to the LLM development index, clarify component
layering responsibilities, and fix architecture references from README to
GUIDE.md.docs: reorganize component guide structure and indexes

Update documentation rules for GUIDE.md files to keep higher-level
guides focused on constraints, conventions, and indexes. Add base and
section component guides to the LLM development index, clarify component
layering responsibilities, and fix architecture references from README to
GUIDE.md.

AGENTS.md

@@ -25,6 +25,12 @@
   - ❌ `useStudentCrudCommands.ts` → ✅ `useCrudCommands.ts`
   - ✅ `models/student.ts`, `stores/students.ts` — domain layer, specific names are correct
 
+## GUIDE.md 寫作規則
+
+- `src/**/GUIDE.md` 只保留該層/目錄的**約束、慣例與索引**，不要塞入詳細 API 文件。
+- 當新增 pattern、目錄或慣例影響層邊界時，建立或更新對應的 `src/**/GUIDE.md`，並確保 `docs/llm-development-guide.md` 將其列入索引。
+- 元件的 Props/Slots/Emits 詳細說明放在各子目錄的 `GUIDE.md`（如 `src/components/base/GUIDE.md`、`src/components/sections/GUIDE.md`），不要放在上層 `src/components/GUIDE.md`。
+
 ## Stack
 - Framework: Vue 3 + Vite
 - UI Library: Vuetify