Initial import: shopdb-flask multi-site asset platform

Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin
framework so sister GE Aerospace sites can adopt it. Product version
0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests.

Key entry points:
- docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook
  (own-site and subpath deployment methods)
- docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify
- docs/IMPORT-API.md - schema-agnostic legacy data import contract
- scripts/site_imports/wjf/ - West Jefferson reference import loader
- docs/adr/ - twelve accepted architecture decision records

shopdb/core/models/communication.py

@@ -0,0 +1,93 @@
+"""Communication/network interface models."""
+
+from shopdb.extensions import db
+from .base import BaseModel
+
+
+class CommunicationType(BaseModel):
+    """Types of communication interfaces."""
+    __tablename__ = 'communicationtypes'
+
+    comtypeid = db.Column(db.Integer, primary_key=True)
+    comtype = db.Column(db.String(50), unique=True, nullable=False)
+    description = db.Column(db.Text)
+
+    # Types: IP, Serial, USB, VNC, FTP, DNC, Parallel, Network Interface
+
+    def __repr__(self):
+        return f"<CommunicationType {self.comtype}>"
+
+
+class Communication(BaseModel):
+    """
+    Communication interface for an asset (or legacy machine).
+    Stores network config, serial settings, etc.
+    """
+    __tablename__ = 'communications'
+
+    communicationid = db.Column(db.Integer, primary_key=True)
+
+    # New asset-based FK (preferred)
+    assetid = db.Column(
+        db.Integer,
+        db.ForeignKey('assets.assetid'),
+        nullable=True,
+        comment='FK to assets table (new architecture)'
+    )
+
+    comtypeid = db.Column(
+        db.Integer,
+        db.ForeignKey('communicationtypes.comtypeid'),
+        nullable=False
+    )
+
+    # Network configuration (for IP type)
+    ipaddress = db.Column(db.String(50))
+    subnetmask = db.Column(db.String(50))
+    gateway = db.Column(db.String(50))
+    dns1 = db.Column(db.String(50))
+    dns2 = db.Column(db.String(50))
+    macaddress = db.Column(db.String(50))
+    isdhcp = db.Column(db.Boolean, default=False)
+
+    # Serial configuration (for Serial type)
+    comport = db.Column(db.String(20))
+    baudrate = db.Column(db.Integer)
+    databits = db.Column(db.Integer)
+    stopbits = db.Column(db.String(10))
+    parity = db.Column(db.String(20))
+    flowcontrol = db.Column(db.String(20))
+
+    # VNC/FTP configuration
+    port = db.Column(db.Integer)
+    username = db.Column(db.String(100))
+    # Note: passwords should not be stored here - use secure vault
+
+    # DNC configuration
+    pathname = db.Column(db.String(255))
+    pathname2 = db.Column(db.String(255), comment='Secondary path for dualpath')
+
+    # Flags
+    isprimary = db.Column(
+        db.Boolean,
+        default=False,
+        comment='Primary communication method'
+    )
+    ismachinenetwork = db.Column(
+        db.Boolean,
+        default=False,
+        comment='On machine network vs office network'
+    )
+
+    notes = db.Column(db.Text)
+
+    # Relationships
+    comtype = db.relationship('CommunicationType', backref='communications')
+
+    __table_args__ = (
+        db.Index('idx_comm_asset', 'assetid'),
+        db.Index('idx_comm_ip', 'ipaddress'),
+    )
+
+    def __repr__(self):
+        return f"<Communication {self.assetid}:{self.comtype.comtype if self.comtype else 'Unknown'}>"