Add job application quick reference for storing profile links and experience

Auth-protected CRUD for personal info (LinkedIn, GitHub, etc.) and
experience entries, stored in the database so nothing sensitive is in
the public repo. Displayed as a categorized panel on the Job Applications page.

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

backend/graph/model/models_gen.go

@@ -30,6 +30,13 @@ type CreateFavoriteInput struct {
 	Link *string `json:"link,omitempty"`
 }
 
+type CreateJobAppReferenceInput struct {
+	Category  string `json:"category"`
+	Label     string `json:"label"`
+	Value     string `json:"value"`
+	SortOrder *int   `json:"sortOrder,omitempty"`
+}
+
 type CreateJobApplicationInput struct {
 	JobTitle  string     `json:"jobTitle"`
 	Company   string     `json:"company"`
@@ -112,6 +119,13 @@ type SteamStatus struct {
 	RecentGames []*SteamGame `json:"recentGames"`
 }
 
+type UpdateJobAppReferenceInput struct {
+	Category  *string `json:"category,omitempty"`
+	Label     *string `json:"label,omitempty"`
+	Value     *string `json:"value,omitempty"`
+	SortOrder *int    `json:"sortOrder,omitempty"`
+}
+
 type UpdateJobApplicationInput struct {
 	JobTitle  *string    `json:"jobTitle,omitempty"`
 	Company   *string    `json:"company,omitempty"`