Complete Enhanced Triple Migration Pattern for PhotoDialog and OfferDialog components

- Implement 4-phase migration pattern: Database + SQL + Notifications + Template Streamlining
- PhotoDialog.vue: Replace databaseUtil with PlatformServiceMixin, add 8 notification constants, extract 11 computed properties
- OfferDialog.vue: Replace databaseUtil with PlatformServiceMixin, add 7 notification constants, extract CSS classes to computed properties
- Update migration template with Phase 4 (Template Streamlining) and Phase 5 (Code Quality Review)
- Add 15 centralized notification constants to src/constants/notifications.ts

Migration validation: 25/27 components complete (93% success rate)

src/constants/notifications.ts

@@ -196,3 +196,80 @@ export const NOTIFY_CAMERA_SHARE_METHOD = {
   yesText: "we are nearby with cameras",
   noText: "we will share another way",
 };
+
+// OfferDialog.vue constants
+export const NOTIFY_OFFER_SETTINGS_ERROR = {
+  title: "Error",
+  message: "There was an error retrieving your settings.",
+};
+
+export const NOTIFY_OFFER_RECORDING = {
+  text: "Recording the offer...",
+  title: "",
+};
+
+export const NOTIFY_OFFER_IDENTITY_REQUIRED = {
+  title: "Error",
+  message: "You must select an identity before you can record an offer.",
+};
+
+export const NOTIFY_OFFER_DESCRIPTION_REQUIRED = {
+  title: "Error",
+  message: "You must enter a description or some number of {unit}.",
+};
+
+export const NOTIFY_OFFER_CREATION_ERROR = {
+  title: "Error",
+  message: "There was an error creating the offer.",
+};
+
+export const NOTIFY_OFFER_SUCCESS = {
+  title: "Success",
+  message: "That offer was recorded.",
+};
+
+export const NOTIFY_OFFER_SUBMISSION_ERROR = {
+  title: "Error",
+  message: "There was an error recording the offer.",
+};
+
+// PhotoDialog.vue constants
+export const NOTIFY_PHOTO_SETTINGS_ERROR = {
+  title: "Error",
+  message: "There was an error retrieving your settings.",
+};
+
+export const NOTIFY_PHOTO_CAPTURE_ERROR = {
+  title: "Error",
+  message: "Failed to take picture. Please try again.",
+};
+
+export const NOTIFY_PHOTO_CAMERA_ERROR = {
+  title: "Camera Error",
+  message: "Could not access camera. Please check permissions and try again.",
+};
+
+export const NOTIFY_PHOTO_UPLOAD_ERROR = {
+  title: "Upload Error",
+  message: "Failed to upload image. Please try again.",
+};
+
+export const NOTIFY_PHOTO_UPLOAD_SUCCESS = {
+  title: "Success",
+  message: "Image uploaded successfully.",
+};
+
+export const NOTIFY_PHOTO_UNSUPPORTED_FORMAT = {
+  title: "Unsupported Format",
+  message: "This file format is not supported. Please try a different image.",
+};
+
+export const NOTIFY_PHOTO_SIZE_ERROR = {
+  title: "File Too Large",
+  message: "Image file is too large. Please choose a smaller image.",
+};
+
+export const NOTIFY_PHOTO_PROCESSING_ERROR = {
+  title: "Processing Error",
+  message: "Failed to process image. Please try again.",
+};