StreakFit web: exercices planifiés en séance + filtre matériel + config matos profil

- session/[id]: affiche les exercices planifies de la routine (objectif series x reps) + pre-remplit la 1re serie
- exercises/index: select Materiel + bouton 'Mon matos' (filtre sur le materiel du profil)
- profile: multi-select du materiel possede + PATCH /api/me
- i18n fr/en/pt-BR

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

i18n/locales/en.json

@@ -1,5 +1,7 @@
 {
-  "app": { "tagline": "Keep the flame." },
+  "app": {
+    "tagline": "Keep the flame."
+  },
   "nav": {
     "dashboard": "Home",
     "exercises": "Exercises",
@@ -43,7 +45,9 @@
     "instructions": "Instructions",
     "secondaryMuscles": "Secondary muscles",
     "noResults": "No exercise found.",
-    "all": "All"
+    "all": "All",
+    "equipment": "Equipment",
+    "myGear": "My gear"
   },
   "session": {
     "inProgress": "Workout in progress",
@@ -54,7 +58,8 @@
     "live": "live",
     "preparing": "Getting your workout ready…",
     "cantStart": "Couldn't start the workout",
-    "streakToast": "Streak: {n} days"
+    "streakToast": "Streak: {n} days",
+    "target": "Target"
   },
   "routines": {
     "new": "New",
@@ -91,7 +96,11 @@
     "reminders": "Streak reminders 🔥",
     "remindersDesc": "An evening reminder when your flame is at risk.",
     "test": "Send a test",
-    "remindersOn": "Reminders enabled 🔥"
+    "remindersOn": "Reminders enabled 🔥",
+    "equipment": "My equipment",
+    "equipmentDesc": "Pick your equipment: the catalog can filter to what you own.",
+    "equipmentPlaceholder": "Choose my equipment…",
+    "gearSaved": "Equipment saved 💪"
   },
   "common": {
     "loading": "Loading…",