feat: Add JWT auth and nomenclature sync to data-entry-app

Integrate shared JWT authentication into data-entry-app:
- Add Oracle pool initialization for auth service
- Add AuthenticationMiddleware to protect API routes
- Update all receipt endpoints to use CurrentUser from JWT
- Add shared auth router (/api/auth/login, /api/auth/refresh)

Add nomenclature synchronization feature:
- Create SQLite models for synced suppliers, local suppliers, and cash registers
- Add nomenclature router with sync triggers and CRUD endpoints
- Add sync service for Oracle → SQLite nomenclature data
- Update nomenclature_service to use synced SQLite data with fallbacks

Create shared frontend components:
- Add shared/frontend/ with LoginView.vue, auth store factory, login.css
- Integrate shared login and auth into data-entry-app frontend
- Add axios-based API service with token refresh interceptor

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

data-entry-app/backend/migrations/versions/20251213_002805_add_nomenclature_tables.py

@@ -0,0 +1,89 @@
+"""add nomenclature tables
+
+Revision ID: 3a653da79002
+Revises: 1cfb423c6953
+Create Date: 2025-12-13 00:28:05.719430+00:00
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = '3a653da79002'
+down_revision: Union[str, None] = '1cfb423c6953'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('local_suppliers',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('company_id', sa.Integer(), nullable=False),
+    sa.Column('name', sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
+    sa.Column('fiscal_code', sqlmodel.sql.sqltypes.AutoString(length=50), nullable=True),
+    sa.Column('address', sqlmodel.sql.sqltypes.AutoString(length=500), nullable=True),
+    sa.Column('created_by', sqlmodel.sql.sqltypes.AutoString(length=100), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=False),
+    sa.Column('pending_oracle_sync', sa.Boolean(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('local_suppliers', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_local_suppliers_company_id'), ['company_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_local_suppliers_fiscal_code'), ['fiscal_code'], unique=False)
+
+    op.create_table('synced_cash_registers',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('oracle_id', sa.Integer(), nullable=False),
+    sa.Column('company_id', sa.Integer(), nullable=False),
+    sa.Column('name', sqlmodel.sql.sqltypes.AutoString(length=100), nullable=False),
+    sa.Column('account_code', sqlmodel.sql.sqltypes.AutoString(length=20), nullable=False),
+    sa.Column('register_type', sqlmodel.sql.sqltypes.AutoString(length=10), nullable=False),
+    sa.Column('synced_at', sa.DateTime(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('synced_cash_registers', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_synced_cash_registers_company_id'), ['company_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_synced_cash_registers_oracle_id'), ['oracle_id'], unique=False)
+
+    op.create_table('synced_suppliers',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('oracle_id', sa.Integer(), nullable=False),
+    sa.Column('company_id', sa.Integer(), nullable=False),
+    sa.Column('name', sqlmodel.sql.sqltypes.AutoString(length=200), nullable=False),
+    sa.Column('fiscal_code', sqlmodel.sql.sqltypes.AutoString(length=50), nullable=True),
+    sa.Column('address', sqlmodel.sql.sqltypes.AutoString(length=500), nullable=True),
+    sa.Column('synced_at', sa.DateTime(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('synced_suppliers', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_synced_suppliers_company_id'), ['company_id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_synced_suppliers_fiscal_code'), ['fiscal_code'], unique=False)
+        batch_op.create_index(batch_op.f('ix_synced_suppliers_oracle_id'), ['oracle_id'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('synced_suppliers', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_synced_suppliers_oracle_id'))
+        batch_op.drop_index(batch_op.f('ix_synced_suppliers_fiscal_code'))
+        batch_op.drop_index(batch_op.f('ix_synced_suppliers_company_id'))
+
+    op.drop_table('synced_suppliers')
+    with op.batch_alter_table('synced_cash_registers', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_synced_cash_registers_oracle_id'))
+        batch_op.drop_index(batch_op.f('ix_synced_cash_registers_company_id'))
+
+    op.drop_table('synced_cash_registers')
+    with op.batch_alter_table('local_suppliers', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_local_suppliers_fiscal_code'))
+        batch_op.drop_index(batch_op.f('ix_local_suppliers_company_id'))
+
+    op.drop_table('local_suppliers')
+    # ### end Alembic commands ###