fix(notes): GPS lat/lon sérialisé en float au lieu de Decimal

Decimal Python → string JSON causait TypeError: z.toFixed is not a function
dans NoteCard (title attribute de l'icône GPS). Tous les champs gps_lat/gps_lon
passent maintenant en float | None dans les schémas Pydantic.

v0.5.3

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/schemas/notes.py

@@ -1,6 +1,5 @@
 import uuid
 from datetime import datetime
-from decimal import Decimal
 from pydantic import BaseModel, ConfigDict
 
 
@@ -19,8 +18,8 @@ class NoteCreate(BaseModel):
     content: str
     category: str | None = None
     tags: list[str] = []
-    gps_lat: Decimal | None = None
+    gps_lat: float | None = None
-    gps_lon: Decimal | None = None
+    gps_lon: float | None = None
 
 
 class NoteUpdate(BaseModel):
@@ -28,8 +27,8 @@ class NoteUpdate(BaseModel):
     content: str | None = None
     category: str | None = None
     tags: list[str] | None = None
-    gps_lat: Decimal | None = None
+    gps_lat: float | None = None
-    gps_lon: Decimal | None = None
+    gps_lon: float | None = None
 
 
 class NoteResponse(BaseModel):
@@ -39,7 +38,7 @@ class NoteResponse(BaseModel):
     content: str
     category: str | None
     tags: list[str]
-    gps_lat: Decimal | None
+    gps_lat: float | None
-    gps_lon: Decimal | None
+    gps_lon: float | None
     created_at: datetime
     attachments: list[AttachmentResponse]

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "homehub-frontend",
   "private": true,
-  "version": "0.5.2",
+  "version": "0.5.3",
   "type": "module",
   "scripts": {
     "dev": "vite",