feat: add ShiftAssignmentCard widget and StaffShifts module

- Implemented ShiftAssignmentCard widget for displaying shift assignments with client details, pay calculation, and confirmation actions.
- Created StaffShiftsModule to manage dependencies, routes, and use cases related to staff shifts.
- Added necessary dependencies in pubspec.yaml and generated pubspec.lock.

apps/mobile/packages/core_localization/lib/src/l10n/en.i18n.json

@@ -662,6 +662,48 @@
       "upload_required": "✓ Upload photos of required items",
       "accept_attestation": "✓ Accept attestation"
     }
+  },
+  "staff_shifts": {
+    "title": "Shifts",
+    "tabs": {
+        "my_shifts": "My Shifts",
+        "find_work": "Find Work"
+    },
+    "list": {
+        "no_shifts": "No shifts found",
+        "pending_offers": "PENDING OFFERS",
+        "available_jobs": "$count AVAILABLE JOBS",
+        "search_hint": "Search jobs..."
+    },
+    "filter": {
+        "all": "All Jobs",
+        "one_day": "One Day",
+        "multi_day": "Multi Day",
+        "long_term": "Long Term"
+    },
+    "status": {
+        "confirmed": "CONFIRMED",
+        "act_now": "ACT NOW",
+        "swap_requested": "SWAP REQUESTED",
+        "completed": "COMPLETED",
+        "no_show": "NO SHOW",
+        "pending_warning": "Please confirm assignment"
+    },
+    "action": {
+        "decline": "Decline",
+        "confirm": "Confirm",
+        "request_swap": "Request Swap"
+    },
+    "details": {
+        "additional": "ADDITIONAL DETAILS",
+        "days": "$days Days",
+        "exp_total": "(exp.total \\$$amount)",
+        "pending_time": "Pending $time ago"
+    },
+    "tags": {
+        "immediate_start": "Immediate start",
+        "no_experience": "No experience"
+    }
   }
 }
 

apps/mobile/packages/core_localization/lib/src/l10n/es.i18n.json

@@ -661,5 +661,47 @@
       "upload_required": "✓ Subir fotos de artículos requeridos",
       "accept_attestation": "✓ Aceptar certificación"
     }
+  },
+  "staff_shifts": {
+    "title": "Shifts",
+    "tabs": {
+        "my_shifts": "My Shifts",
+        "find_work": "Find Work"
+    },
+    "list": {
+        "no_shifts": "No shifts found",
+        "pending_offers": "PENDING OFFERS",
+        "available_jobs": "$count AVAILABLE JOBS",
+        "search_hint": "Search jobs..."
+    },
+    "filter": {
+        "all": "All Jobs",
+        "one_day": "One Day",
+        "multi_day": "Multi Day",
+        "long_term": "Long Term"
+    },
+    "status": {
+        "confirmed": "CONFIRMED",
+        "act_now": "ACT NOW",
+        "swap_requested": "SWAP REQUESTED",
+        "completed": "COMPLETED",
+        "no_show": "NO SHOW",
+        "pending_warning": "Please confirm assignment"
+    },
+    "action": {
+        "decline": "Decline",
+        "confirm": "Confirm",
+        "request_swap": "Request Swap"
+    },
+    "details": {
+        "additional": "ADDITIONAL DETAILS",
+        "days": "$days Days",
+        "exp_total": "(exp.total \\$$amount)",
+        "pending_time": "Pending $time ago"
+    },
+    "tags": {
+        "immediate_start": "Immediate start",
+        "no_experience": "No experience"
+    }
   }
 }