feat(prospecting): add complete prospecting module for lead discovery and scoring

Migrates scanning pipeline from marketing-.lu-domains app into Orion module.
Supports digital (domain scan) and offline (manual capture) lead channels
with enrichment, scoring, campaign management, and interaction tracking.

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

app/modules/prospecting/models/tech_profile.py

@@ -0,0 +1,51 @@
+# app/modules/prospecting/models/tech_profile.py
+"""
+Technology profile for a prospect's website.
+
+Stores CMS, server, framework, analytics, and other
+technology detection results from website scanning.
+"""
+
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import relationship
+
+from app.core.database import Base
+from models.database.base import TimestampMixin
+
+
+class ProspectTechProfile(Base, TimestampMixin):
+    """Technology profile detected from a prospect's website."""
+
+    __tablename__ = "prospect_tech_profiles"
+
+    id = Column(Integer, primary_key=True, index=True)
+    prospect_id = Column(Integer, ForeignKey("prospects.id", ondelete="CASCADE"), nullable=False, unique=True)
+
+    # CMS Detection
+    cms = Column(String(100), nullable=True)
+    cms_version = Column(String(50), nullable=True)
+
+    # Server
+    server = Column(String(100), nullable=True)
+    server_version = Column(String(50), nullable=True)
+    hosting_provider = Column(String(100), nullable=True)
+    cdn = Column(String(100), nullable=True)
+
+    # SSL
+    has_valid_cert = Column(Boolean, nullable=True)
+    cert_issuer = Column(String(200), nullable=True)
+    cert_expires_at = Column(DateTime, nullable=True)
+
+    # Frontend
+    js_framework = Column(String(100), nullable=True)
+    analytics = Column(String(200), nullable=True)
+    tag_manager = Column(String(100), nullable=True)
+    ecommerce_platform = Column(String(100), nullable=True)
+
+    # Raw data
+    tech_stack_json = Column(Text, nullable=True)  # JSON string
+    scan_source = Column(String(50), nullable=True)
+    scan_error = Column(Text, nullable=True)
+
+    # Relationships
+    prospect = relationship("Prospect", back_populates="tech_profile")