Add AI chat with skills management and model provider settings
- Model providers for OpenAI and Anthropic message formats (e.g. via Sub2API), with API keys encrypted at rest and never returned - Skills tree with markdown editing, priorities, drafts, publishing and rollback; only published skills enter the chat prompt - Chat page with tool calls over collected news and Binance USD-M klines, a persisted CONTEXT.md, reset, and stop-generation support - Chat may only create skill drafts and update CONTEXT.md; publishing, deleting, moving and priority changes stay with the user
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"""ai chat and skills
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Revision ID: 8349ae014ddd
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Revises: d41b7c2e9a10
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Create Date: 2026-10-14 04:43:32.644862
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision: str = '8349ae014ddd'
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down_revision: Union[str, Sequence[str], None] = 'd41b7c2e9a10'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Upgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('ai_providers',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('name', sa.String(length=64), nullable=False),
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sa.Column('protocol', sa.String(length=16), nullable=False),
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sa.Column('base_url', sa.String(length=255), nullable=False),
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sa.Column('api_key_encrypted', sa.LargeBinary(), nullable=False),
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sa.Column('api_key_hint', sa.String(length=8), nullable=False),
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sa.Column('model', sa.String(length=128), nullable=False),
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sa.Column('max_tokens', sa.Integer(), nullable=False),
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sa.Column('context_window', sa.Integer(), nullable=False),
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sa.Column('temperature', sa.Float(), nullable=True),
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sa.Column('is_default', sa.Boolean(), nullable=False),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('name')
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)
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op.create_table('chat_sessions',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.Column('ended_at', sa.DateTime(timezone=True), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_table('context_versions',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('content', sa.Text(), nullable=False),
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sa.Column('source', sa.String(length=8), nullable=False),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_table('skill_nodes',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('parent_id', sa.Integer(), nullable=True),
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sa.Column('kind', sa.String(length=8), nullable=False),
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sa.Column('name', sa.String(length=128), nullable=False),
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sa.Column('sort_order', sa.Integer(), nullable=False),
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sa.Column('priority', sa.Integer(), nullable=False),
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sa.Column('enabled', sa.Boolean(), nullable=False),
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sa.Column('published_version_id', sa.Integer(), nullable=True),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.ForeignKeyConstraint(['parent_id'], ['skill_nodes.id'], ),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('parent_id', 'name', postgresql_nulls_not_distinct=True)
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)
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op.create_table('chat_messages',
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sa.Column('id', sa.BigInteger(), nullable=False),
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sa.Column('session_id', sa.Integer(), nullable=False),
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sa.Column('role', sa.String(length=16), nullable=False),
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sa.Column('content', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
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sa.Column('provider_id', sa.Integer(), nullable=True),
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sa.Column('usage', postgresql.JSONB(astext_type=sa.Text()), nullable=True),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.ForeignKeyConstraint(['provider_id'], ['ai_providers.id'], ondelete='SET NULL'),
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sa.ForeignKeyConstraint(['session_id'], ['chat_sessions.id'], ),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_chat_messages_session_id'), 'chat_messages', ['session_id'], unique=False)
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op.create_table('skill_versions',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('skill_id', sa.Integer(), nullable=False),
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sa.Column('version_no', sa.Integer(), nullable=False),
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sa.Column('content', sa.Text(), nullable=False),
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sa.Column('source', sa.String(length=8), nullable=False),
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sa.Column('note', sa.Text(), nullable=False),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.ForeignKeyConstraint(['skill_id'], ['skill_nodes.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('skill_id', 'version_no')
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)
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# skill_nodes 与 skill_versions 互相引用，等两张表都建好再加这条外键
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op.create_foreign_key('skill_nodes_published_version_id_fkey', 'skill_nodes', 'skill_versions', ['published_version_id'], ['id'])
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# ### end Alembic commands ###
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def downgrade() -> None:
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"""Downgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_constraint('skill_nodes_published_version_id_fkey', 'skill_nodes', type_='foreignkey')
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op.drop_table('skill_versions')
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op.drop_index(op.f('ix_chat_messages_session_id'), table_name='chat_messages')
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op.drop_table('chat_messages')
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op.drop_table('skill_nodes')
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op.drop_table('context_versions')
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op.drop_table('chat_sessions')
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op.drop_table('ai_providers')
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# ### end Alembic commands ###
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