feat(company-explorer): Initial Web UI & Backend with Enrichment Flow

This commit introduces the foundational elements for the new "Company Explorer" web application, marking a significant step away from the legacy Google Sheets / CLI system.

Key changes include:
- Project Structure: A new  directory with separate  (FastAPI) and  (React/Vite) components.
- Data Persistence: Migration from Google Sheets to a local SQLite database () using SQLAlchemy.
- Core Utilities: Extraction and cleanup of essential helper functions (LLM wrappers, text utilities) into .
- Backend Services: , ,  for AI-powered analysis, and  logic.
- Frontend UI: Basic React application with company table, import wizard, and dynamic inspector sidebar.
- Docker Integration: Updated  and  for multi-stage builds and sideloading.
- Deployment & Access: Integrated into central Nginx proxy and dashboard, accessible via .

Lessons Learned & Fixed during development:
- Frontend Asset Loading: Addressed issues with Vite's  path and FastAPI's .
- TypeScript Configuration: Added  and .
- Database Schema Evolution: Solved  errors by forcing a new database file and correcting  override.
- Logging: Implemented robust file-based logging ().

This new foundation provides a powerful and maintainable platform for future B2B robotics lead generation.

company-explorer/backend/interfaces.py

@@ -0,0 +1,56 @@
+from abc import ABC, abstractmethod
+from typing import List, Optional, Dict, Any
+from pydantic import BaseModel
+
+# --- Generisches Datenmodell ---
+# Damit ist unsere App unabhängig davon, wie SuperOffice Felder benennt.
+class LeadData(BaseModel):
+    name: str
+    website: Optional[str] = None
+    city: Optional[str] = None
+    country: str = "DE"
+    industry: Optional[str] = None
+    
+    # Enrichment Data
+    robotics_potential_score: int = 0
+    robotics_potential_reason: Optional[str] = None
+    
+    # Meta
+    source_id: Optional[str] = None # ID im Quellsystem (z.B. SuperOffice ID)
+
+class TaskData(BaseModel):
+    subject: str
+    description: str
+    deadline: Optional[str] = None
+
+# --- Der Vertrag (Repository Interface) ---
+class CRMRepository(ABC):
+    """
+    Abstrakte Basisklasse für alle CRM-Integrationen.
+    Egal ob Notion, SuperOffice oder Odoo - alle müssen diese Methoden haben.
+    """
+
+    @abstractmethod
+    def get_name(self) -> str:
+        """Gibt den Namen des Systems zurück (z.B. 'SuperOffice')"""
+        pass
+
+    @abstractmethod
+    def find_company(self, name: str, email: str = None) -> Optional[str]:
+        """Sucht eine Firma und gibt die externe ID zurück, falls gefunden."""
+        pass
+
+    @abstractmethod
+    def create_lead(self, lead: LeadData) -> str:
+        """Erstellt einen neuen Lead und gibt die externe ID zurück."""
+        pass
+
+    @abstractmethod
+    def update_lead(self, external_id: str, lead: LeadData) -> bool:
+        """Aktualisiert einen bestehenden Lead mit neuen Enrichment-Daten."""
+        pass
+
+    @abstractmethod
+    def create_task(self, external_id: str, task: TaskData) -> bool:
+        """Erstellt eine Aufgabe/Wiedervorlage für den Vertriebler beim Lead."""
+        pass