Add job application tracker (admin-only)

Full CRUD GraphQL API for tracking job applications with status workflow.
Frontend component in CV view, hidden from print. Login now redirects to
intended route after auth via query param.

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

backend/graph/model/models_gen.go

@@ -24,6 +24,16 @@ type CreateFavoriteInput struct {
 	Link *string `json:"link,omitempty"`
 }
 
+type CreateJobApplicationInput struct {
+	JobTitle  string     `json:"jobTitle"`
+	Company   string     `json:"company"`
+	Location  *string    `json:"location,omitempty"`
+	URL       *string    `json:"url,omitempty"`
+	Status    string     `json:"status"`
+	Notes     *string    `json:"notes,omitempty"`
+	AppliedAt *time.Time `json:"appliedAt,omitempty"`
+}
+
 type CreatePostInput struct {
 	Title   string `json:"title"`
 	Content string `json:"content"`
@@ -96,6 +106,16 @@ type SteamStatus struct {
 	RecentGames []*SteamGame `json:"recentGames"`
 }
 
+type UpdateJobApplicationInput struct {
+	JobTitle  *string    `json:"jobTitle,omitempty"`
+	Company   *string    `json:"company,omitempty"`
+	Location  *string    `json:"location,omitempty"`
+	URL       *string    `json:"url,omitempty"`
+	Status    *string    `json:"status,omitempty"`
+	Notes     *string    `json:"notes,omitempty"`
+	AppliedAt *time.Time `json:"appliedAt,omitempty"`
+}
+
 type UpdatePostInput struct {
 	Title   string `json:"title"`
 	Content string `json:"content"`