新增函數式思考（Grokking Simplicity）練習題主題，並支援概念型題目

[Retsomm]

新增 concept 題型讓不適合寫成可執行程式碼的設計思考題也能進測驗系統，
19 章共 111 題盡量以具體程式碼／情境取代抽象定義背誦，可執行片段皆已用
node 實際驗證輸出。

Summary by CodeRabbit

• New Features
  • Added the Grokking Simplicity functional programming chapter with 19 lessons and extensive Chinese-language exercises.
  • Introduced concept questions with explanations, multiple-choice answers, and verification guidance.
  • Added coverage of functional design, immutability, higher-order functions, array tools, asynchronous coordination, reactive architecture, and more.
• Bug Fixes
  • Code examples now appear only when a question includes code, improving question presentation.
• Documentation
  • Added a structured practice guide covering the book’s exercises and recommended study approach.

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Project	Deployment	Actions	Updated (UTC)
easy-learn	Ready	Preview, Comment	Jul 15, 2026 8:11am

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d22c3f1f-f720-4b40-b648-9b2de03e300f

📥 Commits

Reviewing files that changed from the base of the PR and between 9d22ee7 and 576035e.

📒 Files selected for processing (2)

• apps/web/src/components/QuestionCard.tsx
• grokking-simplicity-練習題.md

📝 Walkthrough

Walkthrough

Adds 19 Grokking Simplicity question sets, introduces the concept question type, registers a new FP chapter, validates concept documentation fields, and prevents empty code blocks from rendering.

Changes

Functional programming curriculum

Layer / File(s)	Summary
Question contracts and rendering packages/core/src/types.ts, packages/core/src/data/typeMeta.ts, apps/web/scripts/validate-questions.mjs, apps/web/src/components/QuestionCard.tsx	Adds concept support to question types, metadata, validation, and conditional code rendering.
Foundational FP lessons packages/core/src/data/questions/fp-{1..6}-*.json	Adds question datasets for introductory FP concepts, actions, calculations, and copy-on-write.
Design and function lessons packages/core/src/data/questions/fp-{7..12}-*.json	Adds lessons covering defensive copying, stratified design, first-class functions, and array tools.
Advanced FP lessons packages/core/src/data/questions/fp-{13..19}-*.json	Adds lessons covering chaining, nested data, timelines, resource sharing, coordination, reactive architecture, and future topics.
FP chapter registration packages/core/src/data/chapters.ts	Registers the imported FP datasets as a new fp chapter.
Exercise reference grokking-simplicity-練習題.md	Adds a Chinese exercise reference for chapters 1–19.

Estimated code review effort: 3 (Moderate) | ~25 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	標題準確概括了新增 Grokking Simplicity 練習題主題與支援 concept 題型兩個主要變更。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dev

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Actionable comments posted: 3

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@apps/web/scripts/validate-questions.mjs`:
- Around line 60-69: Update the documentation link rendering in QuestionCard so
the anchor is included only when question.docs is truthy. Preserve the existing
link attributes and contents for questions with documentation, while rendering
no link for concept questions with an empty docs value.

In `@grokking-simplicity-練習題.md`:
- Around line 78-80: 修正第 4 題對 defensive copying
的描述，避免暗示答案一律是「深拷貝」。請在題幹明確指定資料包含可變巢狀結構，或新增「視資料結構與修改範圍而定」選項，並讓選項與答案反映此條件。
- Around line 180-183: 補充 Queue、Queue(worker)、DroppingQueue(max, worker) 與 Cut
練習的非同步 API 契約，明確指定 worker(task) 回傳 Promise<void>（或定義實際結果型別）、任務完成判定與錯誤回報方式；說明
worker 失敗後佇列是否繼續處理後續任務，並定義 Cut 各條時間線如何收集與傳遞結果，避免並行執行、永久等待或吞錯。

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 28248ff4-9e72-4d98-9ad8-1dca597fe84d

📥 Commits

Reviewing files that changed from the base of the PR and between f0eafda and 9d22ee7.

📒 Files selected for processing (25)

• apps/web/scripts/validate-questions.mjs
• apps/web/src/components/QuestionCard.tsx
• grokking-simplicity-練習題.md
• packages/core/src/data/chapters.ts
• packages/core/src/data/questions/fp-1-welcome.json
• packages/core/src/data/questions/fp-10-first-class-functions-1.json
• packages/core/src/data/questions/fp-11-first-class-functions-2.json
• packages/core/src/data/questions/fp-12-array-tools.json
• packages/core/src/data/questions/fp-13-chaining.json
• packages/core/src/data/questions/fp-14-nested-data.json
• packages/core/src/data/questions/fp-15-timeline-diagrams.json
• packages/core/src/data/questions/fp-16-sharing-resources.json
• packages/core/src/data/questions/fp-17-coordinating-timelines.json
• packages/core/src/data/questions/fp-18-reactive-onion.json
• packages/core/src/data/questions/fp-19-road-ahead.json
• packages/core/src/data/questions/fp-2-overview.json
• packages/core/src/data/questions/fp-3-actions-calculations-data.json
• packages/core/src/data/questions/fp-4-extract-calculations.json
• packages/core/src/data/questions/fp-5-improve-actions.json
• packages/core/src/data/questions/fp-6-copy-on-write.json
• packages/core/src/data/questions/fp-7-defensive-copying.json
• packages/core/src/data/questions/fp-8-stratified-design-1.json
• packages/core/src/data/questions/fp-9-stratified-design-2.json
• packages/core/src/data/typeMeta.ts
• packages/core/src/types.ts