Batch 1: dashboard, maps, segments rewrite, health, sync UX

Fixes:
- Dashboard: featured most-recent activity card with map + stats
- Maps default to Street; preferCanvas + larger tile buffer for smoother pan/zoom
- Running cadence as colour-banded dots + 165 spm guide line
- Routes: inline row expansion, rename (PATCH /routes/{id}), podium + deltas, tiled map
- Records: remove reversed pace Y-axis
- Profile: remove resting HR; add goal weight
- Health: snapshot weight carry-forward; VO2 trend axis 30-70;
  weight goal line + kg/st-lb toggle + axis max; sleep 8h/avg lines
- Garmin sync progress moved to global store with persistent floating bar

Features:
- Speed-coloured activity route (default) with Speed/Solid toggle
- GPS-geometry segments: draw on map, match across all activities,
  1st/2nd/3rd leaderboard + podium badges (replaces old distance segments)
- Lap bests: best time per lap across a route + delta column
- Body Battery: highlight activity time windows

Schema: users.goal_weight_kg ALTER; new segments/segment_efforts tables.
Removes RouteSegment, the Segments page, and segment-bests endpoints.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/app/api/routes.py

@@ -7,18 +7,11 @@ from datetime import datetime, timedelta, timezone
 
 from app.core.database import get_db
 from app.core.security import get_current_user
-from app.models.user import User, NamedRoute, RouteSegment, Activity
+from app.models.user import User, NamedRoute, Activity
 
 router = APIRouter()
 
 
-class SegmentCreate(BaseModel):
-    name: str
-    start_distance_m: float
-    end_distance_m: float
-    description: Optional[str] = None
-
-
 class RouteCreate(BaseModel):
     name: str
     description: Optional[str] = None
@@ -26,6 +19,11 @@ class RouteCreate(BaseModel):
     activity_id: int
 
 
+class RouteUpdate(BaseModel):
+    name: Optional[str] = None
+    sport_type: Optional[str] = None
+
+
 class RouteOut(BaseModel):
     id: int
     name: str
@@ -42,32 +40,6 @@ class RouteOut(BaseModel):
         from_attributes = True
 
 
-class SegmentOut(BaseModel):
-    id: int
-    name: str
-    start_distance_m: float
-    end_distance_m: float
-    description: Optional[str]
-    auto_generated: Optional[bool] = False
-    auto_generated_type: Optional[str] = None
-
-    class Config:
-        from_attributes = True
-
-
-class AutoGenerateRequest(BaseModel):
-    type: str  # "1km" | "turns" | "hills"
-    gradient_pct: float = 5.0
-    turn_angle_deg: float = 45.0
-
-
-class SegmentTimeEntry(BaseModel):
-    activity_id: int
-    date: datetime
-    name: str
-    duration_s: float
-
-
 @router.get("/", response_model=List[RouteOut])
 async def list_routes(
     db: AsyncSession = Depends(get_db),
@@ -179,6 +151,31 @@ async def get_route(
     return route
 
 
+@router.patch("/{route_id}", response_model=RouteOut)
+async def update_route(
+    route_id: int,
+    body: RouteUpdate,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    result = await db.execute(
+        select(NamedRoute).where(
+            NamedRoute.id == route_id,
+            NamedRoute.user_id == current_user.id,
+        )
+    )
+    route = result.scalar_one_or_none()
+    if not route:
+        raise HTTPException(status_code=404, detail="Route not found")
+    if body.name is not None and body.name.strip():
+        route.name = body.name.strip()
+    if body.sport_type is not None:
+        route.sport_type = body.sport_type
+    await db.commit()
+    await db.refresh(route)
+    return route
+
+
 @router.get("/{route_id}/activities")
 async def route_activities(
     route_id: int,
@@ -281,292 +278,3 @@ async def assign_activity_to_route(
     activity.named_route_id = route_id
     await db.commit()
     return {"status": "ok"}
-
-
-async def _get_owned_route(route_id: int, user_id: int, db: AsyncSession) -> NamedRoute:
-    result = await db.execute(
-        select(NamedRoute).where(NamedRoute.id == route_id, NamedRoute.user_id == user_id)
-    )
-    route = result.scalar_one_or_none()
-    if not route:
-        raise HTTPException(status_code=404, detail="Route not found")
-    return route
-
-
-@router.get("/{route_id}/segments", response_model=List[SegmentOut])
-async def list_segments(
-    route_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    await _get_owned_route(route_id, current_user.id, db)
-    result = await db.execute(
-        select(RouteSegment)
-        .where(RouteSegment.route_id == route_id)
-        .order_by(RouteSegment.start_distance_m)
-    )
-    return result.scalars().all()
-
-
-@router.post("/{route_id}/segments", response_model=SegmentOut)
-async def create_segment(
-    route_id: int,
-    body: SegmentCreate,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    await _get_owned_route(route_id, current_user.id, db)
-    segment = RouteSegment(
-        route_id=route_id,
-        name=body.name,
-        start_distance_m=body.start_distance_m,
-        end_distance_m=body.end_distance_m,
-        description=body.description,
-        auto_generated=False,
-    )
-    db.add(segment)
-    await db.commit()
-    await db.refresh(segment)
-    return segment
-
-
-@router.delete("/{route_id}/segments/{segment_id}", status_code=204)
-async def delete_segment(
-    route_id: int,
-    segment_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    await _get_owned_route(route_id, current_user.id, db)
-    result = await db.execute(
-        select(RouteSegment).where(
-            RouteSegment.id == segment_id, RouteSegment.route_id == route_id
-        )
-    )
-    seg = result.scalar_one_or_none()
-    if not seg:
-        raise HTTPException(status_code=404, detail="Segment not found")
-    await db.delete(seg)
-    await db.commit()
-
-
-@router.post("/{route_id}/segments/auto", response_model=List[SegmentOut])
-async def auto_generate_segments(
-    route_id: int,
-    body: AutoGenerateRequest,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """Auto-generate segments: 1km splits, turns, or hills."""
-    from app.services.route_matcher import (
-        generate_1km_segments, generate_turn_segments, generate_hill_segments,
-    )
-    from sqlalchemy import delete as sql_delete
-
-    route = await _get_owned_route(route_id, current_user.id, db)
-
-    if body.type not in ("1km", "turns", "hills"):
-        raise HTTPException(status_code=400, detail="type must be '1km', 'turns', or 'hills'")
-
-    # Clear only auto-generated segments of the same type so other auto types are preserved
-    await db.execute(
-        sql_delete(RouteSegment).where(
-            RouteSegment.route_id == route_id,
-            RouteSegment.auto_generated == True,
-            RouteSegment.auto_generated_type == body.type,
-        )
-    )
-
-    raw_segments: list[tuple[str, float, float]] = []
-
-    if body.type == "1km":
-        if not route.distance_m:
-            raise HTTPException(status_code=400, detail="Route has no distance recorded")
-        raw_segments = generate_1km_segments(route.reference_polyline or "", route.distance_m)
-
-    elif body.type == "turns":
-        if not route.reference_polyline:
-            raise HTTPException(status_code=400, detail="Route has no polyline")
-        raw_segments = generate_turn_segments(route.reference_polyline, body.turn_angle_deg)
-
-    elif body.type == "hills":
-        if not route.reference_polyline:
-            raise HTTPException(status_code=400, detail="Route has no polyline")
-        # Find most recent matched activity for elevation data
-        act_result = await db.execute(
-            select(Activity)
-            .where(Activity.named_route_id == route_id, Activity.user_id == current_user.id)
-            .order_by(desc(Activity.start_time))
-            .limit(1)
-        )
-        act = act_result.scalar_one_or_none()
-        if not act:
-            raise HTTPException(status_code=400, detail="No matched activities found for elevation data")
-        from app.models.user import ActivityDataPoint
-        dp_result = await db.execute(
-            select(ActivityDataPoint)
-            .where(ActivityDataPoint.activity_id == act.id)
-            .order_by(ActivityDataPoint.timestamp)
-        )
-        dps = dp_result.scalars().all()
-        dp_list = [{"distance_m": p.distance_m, "altitude_m": p.altitude_m} for p in dps]
-        raw_segments = generate_hill_segments(dp_list, body.gradient_pct)
-
-    new_segments = []
-    for name, start_m, end_m in raw_segments:
-        seg = RouteSegment(
-            route_id=route_id,
-            name=name,
-            start_distance_m=start_m,
-            end_distance_m=end_m,
-            auto_generated=True,
-            auto_generated_type=body.type,
-        )
-        db.add(seg)
-        new_segments.append(seg)
-
-    await db.commit()
-    for seg in new_segments:
-        await db.refresh(seg)
-    return new_segments
-
-
-class SegmentBestOut(BaseModel):
-    segment_id: int
-    name: str
-    start_distance_m: float
-    end_distance_m: float
-    auto_generated: bool
-    best_s: Optional[float]
-    best_activity_id: Optional[int]
-    count: int
-
-
-@router.get("/{route_id}/segment-bests", response_model=List[SegmentBestOut])
-async def get_segment_bests(
-    route_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """Return best time per segment across all matched activities for a route."""
-    from app.services.route_matcher import find_segment_times
-    from app.models.user import ActivityDataPoint
-    from collections import defaultdict
-
-    await _get_owned_route(route_id, current_user.id, db)
-
-    segs_result = await db.execute(
-        select(RouteSegment)
-        .where(RouteSegment.route_id == route_id)
-        .order_by(RouteSegment.start_distance_m)
-    )
-    segments = segs_result.scalars().all()
-    if not segments:
-        return []
-
-    acts_result = await db.execute(
-        select(Activity)
-        .where(Activity.named_route_id == route_id, Activity.user_id == current_user.id)
-        .order_by(desc(Activity.start_time))
-        .limit(20)
-    )
-    activities = acts_result.scalars().all()
-    if not activities:
-        return [
-            SegmentBestOut(
-                segment_id=s.id, name=s.name,
-                start_distance_m=s.start_distance_m, end_distance_m=s.end_distance_m,
-                auto_generated=bool(s.auto_generated), best_s=None, best_activity_id=None, count=0,
-            )
-            for s in segments
-        ]
-
-    act_ids = [a.id for a in activities]
-
-    dp_result = await db.execute(
-        select(ActivityDataPoint)
-        .where(ActivityDataPoint.activity_id.in_(act_ids))
-        .order_by(ActivityDataPoint.activity_id, ActivityDataPoint.timestamp)
-    )
-    all_dps = dp_result.scalars().all()
-
-    # Group data points by activity_id
-    dp_by_act = defaultdict(list)
-    for dp in all_dps:
-        if dp.distance_m is not None:
-            dp_by_act[dp.activity_id].append({"distance_m": dp.distance_m, "timestamp": dp.timestamp})
-
-    bests = []
-    for seg in segments:
-        best_s = None
-        best_act_id = None
-        count = 0
-        for act_id in act_ids:
-            dp_list = dp_by_act.get(act_id, [])
-            duration = find_segment_times(dp_list, seg.start_distance_m, seg.end_distance_m)
-            if duration is not None:
-                count += 1
-                if best_s is None or duration < best_s:
-                    best_s = duration
-                    best_act_id = act_id
-        bests.append(SegmentBestOut(
-            segment_id=seg.id, name=seg.name,
-            start_distance_m=seg.start_distance_m, end_distance_m=seg.end_distance_m,
-            auto_generated=bool(seg.auto_generated),
-            best_s=best_s, best_activity_id=best_act_id, count=count,
-        ))
-    return bests
-
-
-@router.get("/{route_id}/segments/{segment_id}/times", response_model=List[SegmentTimeEntry])
-async def get_segment_times(
-    route_id: int,
-    segment_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """Return the last 10 times this segment was traversed across matched activities."""
-    from app.services.route_matcher import find_segment_times
-    from app.models.user import ActivityDataPoint
-
-    await _get_owned_route(route_id, current_user.id, db)
-
-    seg_result = await db.execute(
-        select(RouteSegment).where(
-            RouteSegment.id == segment_id, RouteSegment.route_id == route_id
-        )
-    )
-    seg = seg_result.scalar_one_or_none()
-    if not seg:
-        raise HTTPException(status_code=404, detail="Segment not found")
-
-    acts_result = await db.execute(
-        select(Activity)
-        .where(Activity.named_route_id == route_id, Activity.user_id == current_user.id)
-        .order_by(desc(Activity.start_time))
-        .limit(10)
-    )
-    activities = acts_result.scalars().all()
-
-    times = []
-    for act in activities:
-        dp_result = await db.execute(
-            select(ActivityDataPoint)
-            .where(ActivityDataPoint.activity_id == act.id)
-            .order_by(ActivityDataPoint.timestamp)
-        )
-        dps = dp_result.scalars().all()
-        dp_list = [
-            {"distance_m": p.distance_m, "timestamp": p.timestamp}
-            for p in dps
-            if p.distance_m is not None
-        ]
-        duration = find_segment_times(dp_list, seg.start_distance_m, seg.end_distance_m)
-        if duration:
-            times.append(SegmentTimeEntry(
-                activity_id=act.id,
-                date=act.start_time,
-                name=act.name,
-                duration_s=duration,
-            ))
-    return times