feat: Enhance data models and sorting logic for investors and projects

app/db/models.py

@@ -162,6 +162,7 @@ class InvestorMember(Base, TimestampMixin):
     role = Column(String, nullable=True)
     title = Column(String, nullable=True)  # Alternative to role
     email = Column(String, nullable=True)
+    linkedin = Column(String, nullable=True)  # LinkedIn profile URL
     source_url = Column(String, nullable=True)  # URL where member info was found
 
     investor_id = Column(Integer, ForeignKey("investors.id"))
@@ -215,6 +216,8 @@ class CompanyTable(Base, TimestampMixin):
     description = Column(String, nullable=True)
     founded_year = Column(Integer, nullable=True)
     website = Column(String, nullable=True)
+    product_service = Column(Text, nullable=True)  # Product/service description
+    clients = Column(JSON, nullable=True)  # List of client names or client information
 
     members = relationship(
         "CompanyMember", back_populates="company", cascade="all, delete-orphan"
@@ -300,6 +303,7 @@ class ProjectTable(Base, TimestampMixin):
     description = Column(Text, nullable=True)
     start_date = Column(DateTime, nullable=True)
     end_date = Column(DateTime, nullable=True)
+    is_archived = Column(Integer, default=0, nullable=False)  # 0 = active, 1 = archived
 
     sector = relationship(
         "SectorTable", secondary=project_sector_association, back_populates="projects"