Development: Fix pair programming status during analysis pipeline

[az108]

Checklist

General

• I tested all changes and their related features with all corresponding user types.

Server

• Important: I implemented the changes with a very good performance and prevented too many (unnecessary) and too complex database calls.
• I strictly followed the principle of data economy for all database calls.
• I strictly followed the server coding and design guidelines.
• I documented the Java code using JavaDoc style.

Client

• Important: I implemented the changes with a very good performance, prevented too many (unnecessary) REST calls and made sure the UI is responsive, even with large data (e.g. using paging).
• I strictly followed the principle of data economy for all client-server REST calls.
• I strictly followed the client coding and design guidelines.
• I documented the React code.

Motivation and Context

Fixes #210

After making the server the single source of truth for PP status, all teams showed NOT_FOUND badges when no attendance was uploaded, PP badges disappeared during analysis phases, failed teams were excluded from PP analysis, and an async recompute raced with AI analysis.

Description

Server changes:

• PairProgrammingService: getPairProgrammingStatus() and calculateScore() return null when no attendance data exists (no Excel uploaded), instead of NOT_FOUND
• AnalysisResultPersistenceService: Move calculateGitOnlyCqi() before checkAndMarkFailed() so PP is computed for all teams including failed ones. Stop clearing PP fields when marking teams as failed. Include cqiDetails in the failed team response DTO.
• AnalysisQueryService: reconstructCqiDetails() now returns a result when only PP fields are set (for failed teams on page refresh)
• StreamingAnalysisPipelineService: Run PP recompute synchronously after GIT_DONE (instead of async) to avoid race condition with AI analysis

Client changes:

• TeamsList/TeamDetail: Show yellow "Pending" PP badge for all teams without PP status when attendance is uploaded (covers failed teams, DONE teams, and all in-progress states)
• TeamsList: AI_ANALYZING teams now sort above completed teams
• Teams page: Removed uploadedAttendanceFileName dependency from PP recomputing poll

Steps for Testing

Prerequisites:

1. Log in to Harmonia
2. Select a course and exercise with pair programming enabled

Test 1: No attendance uploaded

1. Start analysis without uploading attendance
2. Verify no PP badges appear at any phase (not NOT_FOUND)

Test 2: Attendance uploaded before analysis

1. Upload attendance Excel
2. Start analysis (FULL or SIMPLE mode)
3. During PENDING/DOWNLOADING/GIT_ANALYZING → yellow "Pending" PP badges for all teams
4. After GIT_DONE → correct PASS/FAIL/NOT_FOUND/WARNING badges appear (including for failed teams)
5. AI_ANALYZING teams appear above completed teams

Test 3: Attendance uploaded during analysis

1. Start analysis without attendance
2. Upload attendance while analysis runs
3. Press upload → correct PP badges appear after recompute

Test 4: Page refresh

1. After analysis completes, refresh the page
2. All PP badges (including for failed teams) should persist from DB

Review Progress

Code Review

• Code Review 1

Manual Tests

• Test 1

Screenshots

🤖 Generated with Claude Code

[github-actions]

🤖 No OpenAPI or client changes needed.

[github-actions]

🤖 No OpenAPI or client changes needed.