feat(group): vollständiger Gruppen- und Member-WorkflowFeat/group function

[Lav-Sen]

✨ Summary

This PR introduces the complete Group & Member workflow, including group joining, member dashboards, tutorials, solution galleries, and archive handling.

Additionally, it includes several stability and UX improvements for progress tracking, heartbeats, and navigation.

---

🚀 What’s Included

Group Features

• GroupTutorials
• GroupSolutions
• JoinGroup
• ArchiveGroup

Member Features

• MemberDashboard
• MemberTutorial
• MemberSolution
• CreateStudent

Routing Improvements

• Added dedicated member routes
• Centralized routing logic
• Introduced a route guard for automatic leave handling when a group becomes archived

Archive Flow Improvements

• Members are now cleanly removed during group archival
• Prevents future join conflicts
  (e.g. 409 Conflict on re-join attempts)

Tutorial & Solution Flow Enhancements

• Progress updates
• Solution submission flow
• Thumbnail + fallback handling
• Open in Blockly support

UI & Navigation

• Group and Member dashboard views

• Navbar and route updates

• Display of:

  • Name
  • Nickname
  • Status
  • Progress

---

📦 Affected Areas

Group

• Dashboard
• Tutorials
• Solutions
• Join
• Archive

Member

• Dashboard
• Tutorials
• Solutions
• CreateStudent

Routing

• Central integration of member flows

Tutorial Viewer

• Sidebar
• SolutionCheck
• TutorialFooter

Store / Actions

• Integrated into existing data flows

---

🎯 Why

The goal is to provide a consistent end-to-end classroom workflow:

1. Manage groups and allow members to join
2. Members work through tutorials and submit solutions
3. Teachers can monitor status and progress centrally
4. Archiving cleanly terminates sessions and memberships

---

🔍 Review Notes

Please focus review on the following areas:

API Contracts

• Group member leave / join
• Progress POST / GET
• Solutions create / get

[github-actions]

Tests

Test Name	Status	Flaky	Duration
Basic Page Tests Page Loading and Structure [Basic] visits the basic page	❌		907ms
Basic Page Tests Page Loading and Structure [Basic] displays Blockly workspace	⏭️		1ms
Basic Page Tests Page Loading and Structure [Basic] loads with correct height (non-embedded)	⏭️		1ms
Basic Page Tests Page Loading and Structure [Basic] displays the floating serial interface	⏭️		1ms
Basic Page Tests Blockly Workspace Initialization [Basic] displays the start block	⏭️		1ms
Basic Page Tests Serial Interface [Basic] displays serial connect button	⏭️		1ms
Basic Page Tests Serial Interface [Basic] shows Web Serial API support status	⏭️		1ms
Basic Page Tests Serial Interface [Basic] serial interface is not open by default	⏭️		1ms
Basic Page Tests Device Selection [Basic] does not display device selection on main basic page	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate from basic page to tutorial	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate from basic page to gallery	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate back to basic page from other pages	⏭️		1ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] visits the embedded basic page	❌		335ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] displays Blockly workspace in full height	❌		203ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] no navbar in embedded mode	❌		203ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] no footer in embedded mode	❌		224ms
Basic Embedded Page Tests Embedded Projects [BasicEmbedded] loads project by ID	✅		54ms
Basic Project Page Tests Project Loading [BasicProject] handles invalid project ID gracefully	❌		194ms
Basic Project Page Tests Project Loading [BasicProject] displays breadcrumbs for project pages	❌		233ms
Basic Project Page Tests Project Loading [BasicProject] displays loading state while fetching project	❌		193ms
Basic Project Page Tests Project Workspace [BasicProject] loads workspace with project XML	❌		199ms
Basic Project Page Tests Project Workspace [BasicProject] displays FloatingSerial for projects	❌		195ms
Blockly Editor Page Tests [Blockly] visits the editor page	❌		867ms
Blockly Editor Page Tests [Blockly] visits the tutorial page	❌		214ms
Blockly Editor Page Tests [Blockly] visits the gallery page	❌		181ms
Blockly Editor Page Tests [Gallery] clicks on a gallery item card and navigates to project detail	❌		181ms
Blockly Editor Page Tests [Blockly] visits the faq page	❌		175ms
Blockly Editor Page Tests [Blockly] visits the settings page	❌		187ms
Blockly Editor Page Tests [Blockly] visits the login page	❌		187ms
Blockly Editor Page Tests [Blockly] navigates to tutorial and back	❌		182ms
Blockly Editor Page Tests [Blockly] selects senseBox ESP	❌		206ms
Blockly Editor Page Tests [Blockly] selects senseBox MCU	❌		215ms
Blockly Editor Page Tests [Blockly] selects senseBox Mini	❌		193ms
Blockly Editor Page Tests [Blockly] changes the language in settings and verifies via headline	❌		214ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for esp32	❌		240ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for MCU	❌		187ms
Blockly Editor Page Tests [Blockly] compiles code	❌		193ms
Code Editor Page Tests [CodeEditor] visits the code editor page	❌		721ms
Code Editor Page Tests [CodeEditor] selects senseBox ESP	❌		184ms
Code Editor Page Tests [CodeEditor] compiles code	❌		169ms
Code Editor Page Tests [CodeEditor] opens reset dialog	❌		154ms
Code Editor Page Tests [CodeEditor] fetches libraries	❌		209ms
Embedded Blockly Page Tests [Embedded] visits the embedded page	❌		699ms
Embedded Blockly Page Tests [Embedded] displays Blockly workspace	❌		180ms
Embedded Blockly Page Tests [Embedded] displays iPad toolbar	❌		170ms
Embedded Blockly Page Tests [Embedded] displays workspace name component	❌		170ms
Embedded Blockly Page Tests [Embedded] displays device selection	❌		168ms
Embedded Blockly Page Tests [Embedded] compiles code	❌		168ms
Embedded Blockly Page Tests [Embedded] opens share dialog and generates short link	❌		187ms
Embedded Blockly Page Tests [Embedded] marks toolbox xml as embedded mode in portrait	❌		184ms
Embedded Blockly Page Tests [Embedded] displays Blockly workspace on large screens (landscape)	❌		184ms
Embedded Blockly Page Tests [Embedded] can drag and drop blocks	❌		184ms
Embedded Blockly Page Tests [Embedded] persists workspace state	❌		185ms
Embedded Blockly Page Tests [Embedded] closes dialog on cancel	❌		230ms
Embedded Blockly Page Tests [Embedded] uses tablet mode for compilation with embedded-specific text	❌		206ms
End-to-End Tutorial Flow 1. registers a new user	❌		682ms
End-to-End Tutorial Flow 2. logs in with the registered user	❌		181ms
End-to-End Tutorial Flow 3. navigates to /tutorial/builder	❌		169ms
End-to-End Tutorial Flow 4. creates a new tutorial via UI	❌		172ms
End-to-End Tutorial Flow 5. views the created tutorial	❌		167ms
End-to-End Tutorial Flow 6. edits the tutorial title and saves	❌		179ms
End-to-End Tutorial Flow 7. deletes the test tutorial	❌		164ms
End-to-End Tutorial Flow 8. deletes the test user account	❌		740ms

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[github-actions]

Tests

Test Name	Status	Flaky	Duration
Basic Page Tests Page Loading and Structure [Basic] visits the basic page	❌		963ms
Basic Page Tests Page Loading and Structure [Basic] displays Blockly workspace	⏭️		1ms
Basic Page Tests Page Loading and Structure [Basic] loads with correct height (non-embedded)	⏭️		1ms
Basic Page Tests Page Loading and Structure [Basic] displays the floating serial interface	⏭️		1ms
Basic Page Tests Blockly Workspace Initialization [Basic] displays the start block	⏭️		1ms
Basic Page Tests Serial Interface [Basic] displays serial connect button	⏭️		1ms
Basic Page Tests Serial Interface [Basic] shows Web Serial API support status	⏭️		1ms
Basic Page Tests Serial Interface [Basic] serial interface is not open by default	⏭️		1ms
Basic Page Tests Device Selection [Basic] does not display device selection on main basic page	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate from basic page to tutorial	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate from basic page to gallery	⏭️		1ms
Basic Page Tests Navigation [Basic] can navigate back to basic page from other pages	⏭️		1ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] visits the embedded basic page	❌		233ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] displays Blockly workspace in full height	❌		206ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] no navbar in embedded mode	❌		197ms
Basic Embedded Page Tests Embedded Mode [BasicEmbedded] no footer in embedded mode	❌		199ms
Basic Embedded Page Tests Embedded Projects [BasicEmbedded] loads project by ID	✅		55ms
Basic Project Page Tests Project Loading [BasicProject] handles invalid project ID gracefully	❌		183ms
Basic Project Page Tests Project Loading [BasicProject] displays breadcrumbs for project pages	❌		198ms
Basic Project Page Tests Project Loading [BasicProject] displays loading state while fetching project	❌		212ms
Basic Project Page Tests Project Workspace [BasicProject] loads workspace with project XML	❌		214ms
Basic Project Page Tests Project Workspace [BasicProject] displays FloatingSerial for projects	❌		208ms
Blockly Editor Page Tests [Blockly] visits the editor page	❌		767ms
Blockly Editor Page Tests [Blockly] visits the tutorial page	❌		209ms
Blockly Editor Page Tests [Blockly] visits the gallery page	❌		188ms
Blockly Editor Page Tests [Gallery] clicks on a gallery item card and navigates to project detail	❌		167ms
Blockly Editor Page Tests [Blockly] visits the faq page	❌		185ms
Blockly Editor Page Tests [Blockly] visits the settings page	❌		184ms
Blockly Editor Page Tests [Blockly] visits the login page	❌		183ms
Blockly Editor Page Tests [Blockly] navigates to tutorial and back	❌		187ms
Blockly Editor Page Tests [Blockly] selects senseBox ESP	❌		198ms
Blockly Editor Page Tests [Blockly] selects senseBox MCU	❌		196ms
Blockly Editor Page Tests [Blockly] selects senseBox Mini	❌		185ms
Blockly Editor Page Tests [Blockly] changes the language in settings and verifies via headline	❌		195ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for esp32	❌		230ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for MCU	❌		197ms
Blockly Editor Page Tests [Blockly] compiles code	❌		203ms
Code Editor Page Tests [CodeEditor] visits the code editor page	❌		850ms
Code Editor Page Tests [CodeEditor] selects senseBox ESP	❌		243ms
Code Editor Page Tests [CodeEditor] compiles code	❌		243ms
Code Editor Page Tests [CodeEditor] opens reset dialog	❌		194ms
Code Editor Page Tests [CodeEditor] fetches libraries	❌		209ms
Embedded Blockly Page Tests [Embedded] visits the embedded page	❌		837ms
Embedded Blockly Page Tests [Embedded] displays Blockly workspace	❌		232ms
Embedded Blockly Page Tests [Embedded] displays iPad toolbar	❌		202ms
Embedded Blockly Page Tests [Embedded] displays workspace name component	❌		187ms
Embedded Blockly Page Tests [Embedded] displays device selection	❌		199ms
Embedded Blockly Page Tests [Embedded] compiles code	❌		196ms
Embedded Blockly Page Tests [Embedded] opens share dialog and generates short link	❌		193ms
Embedded Blockly Page Tests [Embedded] marks toolbox xml as embedded mode in portrait	❌		184ms
Embedded Blockly Page Tests [Embedded] displays Blockly workspace on large screens (landscape)	❌		213ms
Embedded Blockly Page Tests [Embedded] can drag and drop blocks	❌		200ms
Embedded Blockly Page Tests [Embedded] persists workspace state	❌		184ms
Embedded Blockly Page Tests [Embedded] closes dialog on cancel	❌		198ms
Embedded Blockly Page Tests [Embedded] uses tablet mode for compilation with embedded-specific text	❌		280ms
Group & Member Flow [JoinGroup] sends access code case-insensitive (normalized uppercase)	❌		1.8s
Group & Member Flow [GroupDashboard] hides tutorial/progress after 1 minute offline	✅		497ms
Group & Member Flow [MemberRouteGuard] auto-leaves and redirects when group is archived	✅		485ms
Group & Member Flow [GroupDashboard] archives group after removing all members	✅		556ms
Group Teacher POV Flow [Teacher] creates a group and lands on group dashboard	❌		735ms
Group Teacher POV Flow [Teacher] sees access code dialog on dashboard	❌		215ms
Group Teacher POV Flow [Teacher] can open create-student page and add a student	❌		186ms
Group Teacher POV Flow [Teacher] can access archive page and delete group via icon	❌		171ms
End-to-End Tutorial Flow 1. registers a new user	❌		693ms
End-to-End Tutorial Flow 2. logs in with the registered user	❌		196ms
End-to-End Tutorial Flow 3. navigates to /tutorial/builder	❌		169ms
End-to-End Tutorial Flow 4. creates a new tutorial via UI	❌		171ms
End-to-End Tutorial Flow 5. views the created tutorial	❌		171ms
End-to-End Tutorial Flow 6. edits the tutorial title and saves	❌		169ms
End-to-End Tutorial Flow 7. deletes the test tutorial	❌		183ms
End-to-End Tutorial Flow 8. deletes the test user account	❌		790ms

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[github-actions]

cypress-run: Run #1162

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Pending ⏳	Other ❓	Flaky 🍂	Duration ⏱️
71	30	41	0	0	0	0	4m 37s

❌ Some tests failed!

Name	Failure Message
❌ Basic Page Tests Page Loading and Structure [Basic] displays Blockly workspace	AssertionError: Timed out retrying after 10000ms: Expected to find element: `.blocklySvg`, but never found it. at Context.eval (webpack://blockly-react/./cypress/e2e/basic-page.cy.js:14:48)
❌ Basic Page Tests Page Loading and Structure [Basic] loads with correct height (non-embedded)	AssertionError: Timed out retrying after 4000ms: Expected to find element: `.blocklySvg`, but never found it. at Context.eval (webpack://blockly-react/./cypress/e2e/basic-page.cy.js:18:9)
❌ Basic Page Tests Page Loading and Structure [Basic] displays the floating serial interface	AssertionError: Timed out retrying after 4000ms: Expected to find element: `[data-testid="serial-connect-button"]`, but never found it. at Context.eval (webpack://blockly-react/./cypress/e2e/basic-page.cy.js:26:54)
❌ Basic Page Tests Blockly Workspace Initialization [Basic] displays the start block	AssertionError: Timed out retrying after 10000ms: Expected to find element: `.blocklySvg`, but never found it. at Context.eval (webpack://blockly-react/./cypress/e2e/basic-page.cy.js:32:48)
❌ Basic Page Tests Serial Interface [Basic] displays serial connect button	AssertionError: Timed out retrying after 4000ms: Expected to find element: `[data-testid="serial-connect-button"]`, but never found it. at Context.eval (webpack://blockly-react/./cypress/e2e/basic-page.cy.js:45:54)

See all failed tests here

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