Dedup Garmin data storage, configurable chart colors, taxonomy fixes, sync/progression fixes

- Remove duplicated Garmin fields from storage; decode display-only fields
  (activity name/type, lap duration/HR, structured workout raw JSON) from
  RawJSON at API-response time instead of storing redundant columns
- Add a fully configurable chart color system (pace/HR main-line colors, 4
  effort-kind colors, tint/darken/brighten intensity knobs) under Profile >
  Chart colors
- Rename training types and fix their display order (Easy, Long, 60'/30'
  Threshold, Tempo, Intervals, MAS Test, Race) everywhere they're listed
- Add an Efficiency Factor progression metric; fix Progression chart axes to
  use tight non-zero-based domains, m:ss/km pace formatting, and rounded
  ticks instead of raw floating-point labels
- Expose the raw get_workout_by_id() payload in the raw-data viewer
  alongside activity/lap/detail JSON; enlarge the modal and shrink array
  indentation for readability
- Fix "last sync" reporting a meaningless activity count: record one
  combined sync run per manual "Sync now" and count genuinely new
  activities instead of re-listing whatever Garmin returned for the queried
  window
- Let a Review Queue activity be manually cleared back to Unclassified, and
  make "Reset all" available even while disconnected from Garmin

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

backend/internal/store/profile_test.go

@@ -28,8 +28,32 @@ func TestProfile_DefaultsThenUpdate(t *testing.T) {
 	if p.MinRepresentativePaceSecPerKm != 720 || p.MinRepresentativeTimeSeconds != 3 {
 		t.Errorf("pace artifact filter defaults = %+v, want pace=720, time=3", p)
 	}
+	if p.Name != "Default" {
+		t.Errorf("Name = %q, want %q (migration default)", p.Name, "Default")
+	}
+	if p.PaceColor != "#3b82f6" || p.HeartRateColor != "#ef4444" {
+		t.Errorf("main line color defaults = %+v, want pace=#3b82f6, heartRate=#ef4444", p)
+	}
+	if p.WarmupColor != "#c2410c" || p.EffortColor != "#7c3aed" || p.RecoveryColor != "#15803d" || p.CooldownColor != "#fb923c" {
+		t.Errorf("effort color defaults = %+v", p)
+	}
+	if p.MainLineTintPct != 20 {
+		t.Errorf("MainLineTintPct = %v, want 20 (migration default)", p.MainLineTintPct)
+	}
+	if p.BackgroundDarkenPct != 35 {
+		t.Errorf("BackgroundDarkenPct = %v, want 35 (migration default)", p.BackgroundDarkenPct)
+	}
+	if p.TargetBrightenPct != 20 {
+		t.Errorf("TargetBrightenPct = %v, want 20 (migration default)", p.TargetBrightenPct)
+	}
 
 	maxHR, restingHR := 190.0, 50.0
+	p.Name = "Kriss"
+	p.PaceColor = "#111111"
+	p.EffortColor = "#222222"
+	p.MainLineTintPct = 45
+	p.BackgroundDarkenPct = 60
+	p.TargetBrightenPct = 50
 	p.GarminEmail = "runner@example.com"
 	p.GarminPassword = "hunter2"
 	p.RollingWindowDays = 120
@@ -51,6 +75,9 @@ func TestProfile_DefaultsThenUpdate(t *testing.T) {
 	if got.GarminEmail != "runner@example.com" || got.RollingWindowDays != 120 {
 		t.Errorf("got = %+v, want updated email/window", got)
 	}
+	if got.Name != "Kriss" {
+		t.Errorf("Name = %q, want %q after update", got.Name, "Kriss")
+	}
 	if got.MaxHeartRate == nil || *got.MaxHeartRate != 190 {
 		t.Errorf("MaxHeartRate = %v, want 190", got.MaxHeartRate)
 	}
@@ -63,4 +90,16 @@ func TestProfile_DefaultsThenUpdate(t *testing.T) {
 	if got.MinRepresentativePaceSecPerKm != 600 || got.MinRepresentativeTimeSeconds != 5 {
 		t.Errorf("pace artifact filter after update = %+v, want pace=600, time=5", got)
 	}
+	if got.PaceColor != "#111111" || got.EffortColor != "#222222" {
+		t.Errorf("chart colors after update = %+v, want pace=#111111, effort=#222222", got)
+	}
+	if got.MainLineTintPct != 45 {
+		t.Errorf("MainLineTintPct after update = %v, want 45", got.MainLineTintPct)
+	}
+	if got.BackgroundDarkenPct != 60 {
+		t.Errorf("BackgroundDarkenPct after update = %v, want 60", got.BackgroundDarkenPct)
+	}
+	if got.TargetBrightenPct != 50 {
+		t.Errorf("TargetBrightenPct after update = %v, want 50", got.TargetBrightenPct)
+	}
 }