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/repositories/mock.py

@@ -0,0 +1,42 @@
+import logging
+import uuid
+from typing import Optional
+from ..interfaces import CRMRepository, LeadData, TaskData
+
+logger = logging.getLogger(__name__)
+
+class MockRepository(CRMRepository):
+    """
+    Simulates a CRM. Use this for local dev or tests.
+    Stores data in memory (lost on restart).
+    """
+    def __init__(self):
+        self._store = {}
+
+    def get_name(self) -> str:
+        return "Local Mock CRM"
+
+    def find_company(self, name: str, email: str = None) -> Optional[str]:
+        # Simple Exact Match Simulation
+        for lead_id, lead in self._store.items():
+            if lead.name.lower() == name.lower():
+                logger.info(f"[MockCRM] Found existing company '{name}' with ID {lead_id}")
+                return lead_id
+        return None
+
+    def create_lead(self, lead: LeadData) -> str:
+        new_id = f"MOCK_{uuid.uuid4().hex[:8]}"
+        self._store[new_id] = lead
+        logger.info(f"[MockCRM] Created company '{lead.name}' (ID: {new_id}). Total records: {len(self._store)}")
+        return new_id
+
+    def update_lead(self, external_id: str, lead: LeadData) -> bool:
+        if external_id in self._store:
+            self._store[external_id] = lead
+            logger.info(f"[MockCRM] Updated company {external_id} with robotics score: {lead.robotics_potential_score}")
+            return True
+        return False
+
+    def create_task(self, external_id: str, task: TaskData) -> bool:
+        logger.info(f"[MockCRM] 🔔 TASK CREATED for {external_id}: '{task.subject}'")
+        return True