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/schemas/interaction.py

@@ -0,0 +1,44 @@
+# app/modules/prospecting/schemas/interaction.py
+"""Pydantic schemas for prospect interactions."""
+
+from datetime import date, datetime
+
+from pydantic import BaseModel, Field
+
+
+class InteractionCreate(BaseModel):
+    """Schema for creating an interaction."""
+
+    interaction_type: str = Field(
+        ..., pattern="^(note|call|email_sent|email_received|meeting|visit|sms|proposal_sent)$"
+    )
+    subject: str | None = Field(None, max_length=255)
+    notes: str | None = None
+    outcome: str | None = Field(None, pattern="^(positive|neutral|negative|no_answer)$")
+    next_action: str | None = Field(None, max_length=255)
+    next_action_date: date | None = None
+
+
+class InteractionResponse(BaseModel):
+    """Schema for interaction response."""
+
+    id: int
+    prospect_id: int
+    interaction_type: str
+    subject: str | None = None
+    notes: str | None = None
+    outcome: str | None = None
+    next_action: str | None = None
+    next_action_date: date | None = None
+    created_by_user_id: int
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class InteractionListResponse(BaseModel):
+    """List of interactions."""
+
+    items: list[InteractionResponse]
+    total: int