fix: auto-fix CI type error in SessionStats component

[github-actions]

CI Auto-Fix

Original PR: #561
Failed CI Run: Non-Main Branch CI/CD

Fixes Applied

File	Fix	Type
src/app/[locale]/dashboard/sessions/[sessionId]/messages/_components/session-stats.tsx	Updated firstRequestAt and lastRequestAt types from string | null to Date | string | null	TypeScript
src/app/[locale]/dashboard/sessions/[sessionId]/messages/_components/session-stats.tsx	Updated TimeRow function to handle both Date and string inputs	TypeScript
src/app/[locale]/dashboard/sessions/[sessionId]/messages/_components/session-stats.tsx	Import ordering (lint auto-fix)	Lint

Root Cause

The aggregateSessionStats function in src/repository/message.ts returns Date | null for firstRequestAt and lastRequestAt fields, but the SessionStats component interface expected string | null. This type mismatch caused the build to fail.

Not Auto-Fixable

The following pre-existing issues were not addressed as they require human review:

File	Error	Reason
session-stats.tsx	Unused Tooltip import	Pre-existing issue, flagged as unsafe fix by biome

Verification

• bun run typecheck passes
• No logic changes made - the fix is purely type-related and backwards compatible

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Auto-generated by Claude AI

Greptile Summary

This PR fixes a TypeScript type mismatch between the SessionStats component interface and the aggregateSessionStats database query function. The aggregateSessionStats function returns Date | null for timestamp fields, but the component expected string | null, causing CI build failures.

Changes Made:

• Updated SessionStatsProps.stats interface to accept Date | string | null for firstRequestAt and lastRequestAt fields
• Modified TimeRow function to handle both Date objects and string inputs with type guard (instanceof Date)
• Import reordering (lint auto-fix)

Key Points:

• Backwards compatible - the fix handles both Date objects (from database) and string inputs
• No logic changes - purely type-related fix
• Pre-existing unused Tooltip import was intentionally not removed (requires human review)

The fix is minimal, correct, and safe to merge.

Confidence Score: 5/5

• This PR is safe to merge with no risk - it's a minimal type fix with backwards compatibility
• The fix correctly addresses the type mismatch between the database query return type (Date | null) and the component interface (string | null). The implementation properly handles both types with a type guard, maintains backwards compatibility, and includes no logic changes. The typecheck passes and the fix is exactly what's needed.
• No files require special attention

Important Files Changed

Filename	Overview
src/app/[locale]/dashboard/sessions/[sessionId]/messages/_components/session-stats.tsx	Type fix for timestamp fields to accept Date objects from database query results - backwards compatible and properly handles both Date and string inputs

Sequence Diagram

sequenceDiagram
    participant Client as SessionMessagesClient
    participant Action as getSessionDetails()
    participant Repo as aggregateSessionStats()
    participant DB as Database
    participant Component as SessionStats

    Client->>Action: getSessionDetails(sessionId)
    Action->>Repo: aggregateSessionStats(sessionId)
    Repo->>DB: SELECT min(createdAt), max(createdAt)
    DB-->>Repo: Returns Date | null
    Repo-->>Action: Returns { firstRequestAt: Date | null, lastRequestAt: Date | null }
    Action-->>Client: sessionStats with Date objects
    Client->>Component: <SessionStats stats={sessionStats} />
    Component->>Component: TimeRow checks instanceof Date
    Component->>Component: Converts to Date if string, uses directly if Date
    Component-->>Client: Renders formatted timestamps

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