refactor(tenancy): simplify team table + move actions to edit modal

Reverts the expandable sub-row design back to a clean one-row-per-member
table. All per-store management now happens inside the edit modal.

Table: simple 4-column layout (Member | Stores & Roles | Status | Actions)
with view + edit buttons. Store badges show orange for pending stores.

Edit modal enhanced with per-store cards showing:
- Store name, code, and status badge (Active/Pending)
- Role dropdown + Update button (for active stores)
- Resend invitation button (for pending stores)
- Remove from store button
- "Remove from all stores" link at bottom

Removed: expandedMembers, flattenedRows, toggleMemberExpand,
resendStoreInvitation, resendInvitation (member-level).
Added: resendForStore, removeFromStore (work inside edit modal).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/prospecting/models/prospect_contact.py

@@ -7,7 +7,7 @@ Supports both auto-scraped (digital) and manually entered (offline) contacts.
 
 import enum
 
-from sqlalchemy import Boolean, Column, Enum, ForeignKey, Integer, String, Text
+from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, Text
 from sqlalchemy.orm import relationship
 
 from app.core.database import Base
@@ -30,7 +30,7 @@ class ProspectContact(Base, TimestampMixin):
     id = Column(Integer, primary_key=True, index=True)
     prospect_id = Column(Integer, ForeignKey("prospects.id", ondelete="CASCADE"), nullable=False, index=True)
 
-    contact_type = Column(Enum(ContactType), nullable=False)
+    contact_type = Column(String(20), nullable=False)
     value = Column(String(500), nullable=False)
     label = Column(String(100), nullable=True)  # e.g., "info", "sales", "main"
     source_url = Column(Text, nullable=True)  # Page where contact was found