feat(edit): 商品编辑页开发

packages/database/migrations/019_product_editor_ai_source_material.sql

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+SET search_path TO atlas, public;
+
+-- M3.3 keeps the user-curated AI source material beside the product aggregate.
+-- The original collection normalized_payload/raw_evidence remains immutable
+-- evidence; this nullable document is initialized from that evidence on read
+-- and becomes durable only after the user saves the editor draft.
+ALTER TABLE products
+    ADD COLUMN ai_source_material JSONB,
+    ADD CONSTRAINT ck_products_ai_source_material_object
+        CHECK (ai_source_material IS NULL OR jsonb_typeof(ai_source_material) = 'object');

packages/database/migrations/020_product_ai_source_overrides.sql

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+SET search_path TO atlas, public;
+
+-- M3.3.1 evolves the full AI source snapshot into field-level overrides.
+-- Preserve any document saved between migrations 019 and 020 by treating all
+-- of its material fields as explicit overrides based on its recorded source
+-- snapshot revision.
+ALTER TABLE products
+    ADD COLUMN ai_source_material_base_revision BIGINT
+        CHECK (ai_source_material_base_revision IS NULL OR ai_source_material_base_revision > 0);
+
+-- The migrator owns the table, but products uses FORCE RLS. Temporarily turn
+-- it off inside this atomic migration so existing rows from every workspace
+-- can be transformed; the table lock prevents application writes in between.
+ALTER TABLE products NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE products DISABLE ROW LEVEL SECURITY;
+
+UPDATE products
+SET ai_source_material_base_revision =
+        CASE
+            WHEN ai_source_material ? 'source_snapshot_revision'
+                AND (ai_source_material->>'source_snapshot_revision') ~ '^[1-9][0-9]*$'
+            THEN (ai_source_material->>'source_snapshot_revision')::BIGINT
+            ELSE NULL
+        END,
+    ai_source_material = ai_source_material - 'source_snapshot_revision'
+WHERE ai_source_material IS NOT NULL;
+
+ALTER TABLE products RENAME COLUMN ai_source_material TO ai_source_material_overrides;
+ALTER TABLE products
+    ALTER COLUMN ai_source_material_overrides SET DEFAULT '{}'::jsonb;
+
+UPDATE products
+SET ai_source_material_overrides = '{}'::jsonb
+WHERE ai_source_material_overrides IS NULL;
+
+ALTER TABLE products
+    ALTER COLUMN ai_source_material_overrides SET NOT NULL;
+
+ALTER TABLE products ENABLE ROW LEVEL SECURITY;
+ALTER TABLE products FORCE ROW LEVEL SECURITY;

packages/database/migrations/021_product_category_attribute_schema.sql

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+SET search_path TO atlas, public;
+
+-- M3.4 stores the platform's cached category attribute contract separately
+-- from workspace drafts. Product attributes always reference IDs from this
+-- schema; dictionary values are a cache, never free-form client metadata.
+CREATE TABLE platform_product_category_attributes (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    platform_id UUID NOT NULL REFERENCES platforms(id) ON DELETE CASCADE,
+    platform_product_category_id UUID NOT NULL,
+    platform_attribute_id TEXT NOT NULL,
+    complex_id TEXT NOT NULL DEFAULT '0',
+    name TEXT NOT NULL,
+    value_type TEXT NOT NULL CHECK (value_type IN ('text', 'integer', 'decimal', 'boolean', 'dictionary')),
+    is_required BOOLEAN NOT NULL DEFAULT false,
+    is_collection BOOLEAN NOT NULL DEFAULT false,
+    max_value_count INTEGER NOT NULL DEFAULT 1 CHECK (max_value_count BETWEEN 1 AND 100),
+    dictionary_id TEXT,
+    is_aspect BOOLEAN NOT NULL DEFAULT false,
+    source_payload JSONB NOT NULL DEFAULT '{}'::jsonb,
+    synced_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    FOREIGN KEY (platform_id, platform_product_category_id)
+        REFERENCES platform_product_categories(platform_id, id) ON DELETE CASCADE,
+    UNIQUE (platform_id, platform_product_category_id, platform_attribute_id, complex_id),
+    CHECK ((value_type = 'dictionary') = (dictionary_id IS NOT NULL)),
+    CHECK (is_collection OR max_value_count = 1)
+);
+CREATE INDEX ix_platform_product_category_attributes_lookup
+    ON platform_product_category_attributes (platform_id, platform_product_category_id, is_required DESC, name, id);
+
+CREATE TABLE platform_attribute_dictionary_values (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    platform_id UUID NOT NULL REFERENCES platforms(id) ON DELETE CASCADE,
+    dictionary_id TEXT NOT NULL,
+    external_value_id TEXT NOT NULL,
+    value TEXT NOT NULL,
+    is_active BOOLEAN NOT NULL DEFAULT true,
+    source_payload JSONB NOT NULL DEFAULT '{}'::jsonb,
+    synced_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    UNIQUE (platform_id, dictionary_id, external_value_id)
+);
+CREATE INDEX ix_platform_attribute_dictionary_values_search
+    ON platform_attribute_dictionary_values (platform_id, dictionary_id, is_active, value, external_value_id);