M7：形仪与语音——真形锚点、候选定相、声音档案与克隆授权、ASR 接入

- 形仪域 domains/xingyi：form_anchors（稳定辨识特征/年龄表现/许可禁忌/可变范围——生成内容不可静默覆盖锚点）；forms（主仪/化仪/文字形仪，candidate→adopt 定相治理：未定相不进呈现位、主仪唯一、新主仪自动退役旧主仪）；voice_profiles（三来源，授权克隆必填用途与传播范围，revoke-grant 撤回立即生效，assert-usable 合成前置校验拒绝撤回/过期）
- ASR：元炁 SenseVoice /v1/audio/transcriptions 透传（Whisper 兼容 multipart）；YUANQI_BASE_URL 未配置时 503 不降级不伪造——多模态关闭纪律
- 前端形仪工坊（人物详情页）：真形锚点编辑（特征逐行解析）/候选登记定相废弃/声音档案建立与授权撤回；头像呈现位改走定相主仪（forms/primary）；xingyi api 库 + mock + 组件 4 用例
- 退役：旧 avatar 模块（services/endpoints/avatar、avatar_dir 配置、avatar_url 字段、前端直传组件与测试）
- 验收（test_m7_xingyi 三用例）：未定相不成为正式形仪（含主仪唯一与旧主仪 retired 断言）；克隆授权可撤回（缺用途拒/撤回即拒/过期同理/预设不受约束）；关闭全部多模态后文字相伴完整可用（ASR 503 时镜树缘契百工照常——回归）
- 四套件：后端 376、前端 203、BFF 4、神识 5 包全绿（2 个预存环境失败不变）；迁移 008 净库+±1 干净

backend/alembic/versions/008_形仪域_真形锚点_主仪化仪定相_声音档案与克隆授权.py

@@ -0,0 +1,90 @@
+"""形仪域_真形锚点_主仪化仪定相_声音档案与克隆授权
+
+Revision ID: 008
+Revises: 007
+Create Date: 2026-08-27 20:15:34.665285
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '008'
+down_revision: Union[str, Sequence[str], None] = '007'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('form_anchors',
+    sa.Column('id', sa.String(length=80), nullable=False),
+    sa.Column('character_id', sa.String(length=80), nullable=False),
+    sa.Column('features_json', sa.Text(), nullable=False),
+    sa.Column('age_presentation', sa.String(length=40), nullable=False),
+    sa.Column('permissions_json', sa.Text(), nullable=False),
+    sa.Column('mutable_scope_json', sa.Text(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
+    sa.ForeignKeyConstraint(['character_id'], ['characters.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_form_anchors_character_id'), 'form_anchors', ['character_id'], unique=False)
+    op.create_table('forms',
+    sa.Column('id', sa.String(length=80), nullable=False),
+    sa.Column('character_id', sa.String(length=80), nullable=False),
+    sa.Column('kind', sa.String(length=20), nullable=False),
+    sa.Column('status', sa.String(length=20), nullable=False),
+    sa.Column('source', sa.String(length=20), nullable=False),
+    sa.Column('description', sa.Text(), nullable=False),
+    sa.Column('media_ref', sa.String(length=500), nullable=True),
+    sa.Column('live2d_json', sa.Text(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('adopted_at', sa.DateTime(timezone=True), nullable=True),
+    sa.ForeignKeyConstraint(['character_id'], ['characters.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_forms_character_id'), 'forms', ['character_id'], unique=False)
+    op.create_index(op.f('ix_forms_kind'), 'forms', ['kind'], unique=False)
+    op.create_index(op.f('ix_forms_status'), 'forms', ['status'], unique=False)
+    op.create_table('voice_profiles',
+    sa.Column('id', sa.String(length=80), nullable=False),
+    sa.Column('character_id', sa.String(length=80), nullable=False),
+    sa.Column('source', sa.String(length=30), nullable=False),
+    sa.Column('name', sa.String(length=120), nullable=False),
+    sa.Column('params_json', sa.Text(), nullable=False),
+    sa.Column('grant_purpose', sa.String(length=200), nullable=True),
+    sa.Column('grant_expires_at', sa.DateTime(timezone=True), nullable=True),
+    sa.Column('grant_distribution', sa.String(length=200), nullable=True),
+    sa.Column('grant_revoked_at', sa.DateTime(timezone=True), nullable=True),
+    sa.Column('is_active', sa.Boolean(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
+    sa.ForeignKeyConstraint(['character_id'], ['characters.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_voice_profiles_character_id'), 'voice_profiles', ['character_id'], unique=False)
+    op.create_index(op.f('ix_voice_profiles_is_active'), 'voice_profiles', ['is_active'], unique=False)
+    op.add_column('pending_confirmations', sa.Column('expires_at', sa.DateTime(timezone=True), nullable=True))
+    op.add_column('pending_confirmations', sa.Column('brief_json', sa.Text(), server_default='{}', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('pending_confirmations', 'brief_json')
+    op.drop_column('pending_confirmations', 'expires_at')
+    op.drop_index(op.f('ix_voice_profiles_is_active'), table_name='voice_profiles')
+    op.drop_index(op.f('ix_voice_profiles_character_id'), table_name='voice_profiles')
+    op.drop_table('voice_profiles')
+    op.drop_index(op.f('ix_forms_status'), table_name='forms')
+    op.drop_index(op.f('ix_forms_kind'), table_name='forms')
+    op.drop_index(op.f('ix_forms_character_id'), table_name='forms')
+    op.drop_table('forms')
+    op.drop_index(op.f('ix_form_anchors_character_id'), table_name='form_anchors')
+    op.drop_table('form_anchors')
+    # ### end Alembic commands ###