v1.3.0: Refactoring Phase 3+4, Symbol-Verwaltung Redesign, Schlauch-Labels Fix

- Refactoring: Error Boundaries, apiFetch Wrapper, Socket Status-Tracking
- Refactoring: UI Kontrast (theme-aware colors), unused imports bereinigt
- Symbol-Verwaltung: Neues Split-Panel (Meine Symbole + Bibliothek)
- Symbol-Verwaltung: Umbenennen (TLF rot/blau), Duplikate erlaubt
- Symbol-Verwaltung: Karten-Sidebar zeigt eigene Symbole bevorzugt
- Schlauch-Labels: Groessere Schrift (13px/10px), verschiebbar (Drag)
- Schema: TenantSymbol customName, sortOrder, unique constraint entfernt
- Open Source Referenz entfernt (kostenloses Projekt)

src/types/index.ts

@@ -0,0 +1,70 @@
+export interface Project {
+  id: string
+  title: string
+  location?: string
+  description?: string
+  einsatzleiter?: string
+  journalfuehrer?: string
+  mapCenter: { lng: number; lat: number }
+  mapZoom: number
+  isLocked: boolean
+  editingById?: string | null
+  editingUserName?: string | null
+  editingStartedAt?: string | null
+  planImageKey?: string | null
+  planBounds?: { north: number; south: number; east: number; west: number } | null
+  createdAt: string
+  updatedAt: string
+}
+
+export interface DrawFeature {
+  id: string
+  type: string
+  geometry: {
+    type: string
+    coordinates: number[] | number[][] | number[][][]
+  }
+  properties: Record<string, any>
+}
+
+// Mapbox Feature Types
+export type Feature = {
+  id?: string | number
+  type: 'Feature'
+  geometry: {
+    type: string
+    coordinates: any
+  }
+  properties: Record<string, any>
+}
+
+export type DrawMode = 
+  | 'select'
+  | 'point'
+  | 'linestring'
+  | 'polygon'
+  | 'rectangle'
+  | 'circle'
+  | 'freehand'
+  | 'text'
+  | 'arrow'
+  | 'measure'
+  | 'dangerzone'
+  | 'eraser'
+
+export interface JournalEntry {
+  id: string
+  type: 'TEXT' | 'IMAGE' | 'AUDIO' | 'SOMA' | 'DANGER'
+  content?: string
+  timestamp: string
+  userId?: string
+  userName?: string
+  userRole?: string
+  isDone?: boolean
+  fileUrl?: string
+  fileKey?: string
+  somaTemplateId?: string
+  somaChecked?: boolean
+  isCorrected?: boolean
+  correctionOfId?: string
+}