Refactor GraphQL time fields from Duration to Int seconds (#285)

* Refactor event time fields from Duration to Int seconds

- Change remainingTime/elapsedTime to remainingTimeSec/elapsedTimeSec in GraphQL schema
- Update GraphQL fragments and generated code to use seconds instead of Duration
- Modify conversion functions to handle time.Duration to seconds conversion
- Simplify JSON marshaling by removing custom Duration handling

This change improves API consistency and removes complex Duration marshaling logic.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* Refactor Pomodoro time fields to use seconds instead of Duration

- Updated GraphQL schema and fragments to replace remainingTime and elapsedTime with remainingTimeSec and elapsedTimeSec as integers.
- Modified conversion functions to handle time.Duration to seconds conversion.
- Removed custom Duration marshaling logic and associated tests for simplification.

This change enhances API consistency and reduces complexity in time handling.

---------

Co-authored-by: Claude <[email protected]>

Author: hatappi

internal/client/graphql/conv/event.go

@@ -58,8 +58,8 @@ func toPomodoroEvent(
 		BaseEvent:     baseEvent,
 		ID:            payload.Id,
 		State:         state,
-		RemainingTime: payload.RemainingTime,
-		ElapsedTime:   payload.ElapsedTime,
+		RemainingTime: time.Duration(payload.RemainingTimeSec) * time.Second,
+		ElapsedTime:   time.Duration(payload.ElapsedTimeSec) * time.Second,
 		TaskID:        payload.TaskId,
 		Phase:         phase,
 		PhaseCount:    payload.PhaseCount,

internal/client/graphql/conv/pomodoro.go

@@ -3,6 +3,7 @@ package conv
 
 import (
 	"fmt"
+	"time"
 
 	gqlgen "github.com/hatappi/gomodoro/internal/client/graphql/generated"
 	"github.com/hatappi/gomodoro/internal/core"
@@ -28,8 +29,8 @@ func ToCorePomodoro(pomodoro gqlgen.PomodoroDetails) (*core.Pomodoro, error) {
 		TaskID:        pomodoro.TaskId,
 		Phase:         phase,
 		PhaseCount:    pomodoro.PhaseCount,
-		RemainingTime: pomodoro.RemainingTime,
-		ElapsedTime:   pomodoro.ElapsedTime,
+		RemainingTime: time.Duration(pomodoro.RemainingTimeSec) * time.Second,
+		ElapsedTime:   time.Duration(pomodoro.ElapsedTimeSec) * time.Second,
 	}, nil
 }
 

internal/client/graphql/fragments/event.graphql

@@ -10,8 +10,8 @@ fragment EventDetails on Event {
 fragment EventPomodoroPayloadDetails on EventPomodoroPayload {
   id
   state
-  remainingTime
-  elapsedTime
+  remainingTimeSec
+  elapsedTimeSec
   taskId
   phase
   phaseCount

internal/client/graphql/fragments/pomodoro.graphql

@@ -5,6 +5,6 @@ fragment PomodoroDetails on Pomodoro {
   startTime
   phase
   phaseCount
-  remainingTime
-  elapsedTime
+  remainingTimeSec
+  elapsedTimeSec
 }