diff --git a/backend/migrations/099_brand_aliases.sql b/backend/migrations/099_brand_aliases.sql
deleted file mode 100644
index 227e10b9..00000000
--- a/backend/migrations/099_brand_aliases.sql
+++ /dev/null
@@ -1,97 +0,0 @@
--- Migration: Add brand aliases table and brand normalization
--- Enables case-insensitive brand matching and alias mapping
-
--- Create brand_aliases table to map variations to canonical brands
-CREATE TABLE IF NOT EXISTS brand_aliases (
-    id SERIAL PRIMARY KEY,
-    brand_id INTEGER NOT NULL REFERENCES brands(id) ON DELETE CASCADE,
-    alias VARCHAR(255) NOT NULL,           -- The raw brand name variation
-    alias_normalized VARCHAR(255) NOT NULL, -- Lowercase, trimmed for matching
-    source VARCHAR(50) DEFAULT 'auto',     -- 'auto' = auto-detected, 'manual' = user-added
-    created_at TIMESTAMPTZ DEFAULT NOW(),
-
-    UNIQUE(alias_normalized)
-);
-
--- Index for fast lookups
-CREATE INDEX idx_brand_aliases_normalized ON brand_aliases(alias_normalized);
-CREATE INDEX idx_brand_aliases_brand_id ON brand_aliases(brand_id);
-
--- Create function to normalize brand names for matching
-CREATE OR REPLACE FUNCTION normalize_brand_name(name TEXT)
-RETURNS TEXT AS $$
-BEGIN
-    RETURN LOWER(TRIM(
-        -- Remove extra spaces
-        REGEXP_REPLACE(
-            -- Remove non-alphanumeric except spaces
-            REGEXP_REPLACE(name, '[^a-zA-Z0-9\s]', '', 'g'),
-            '\s+', ' ', 'g'
-        )
-    ));
-END;
-$$ LANGUAGE plpgsql IMMUTABLE;
-
--- Create function to find or create brand and return brand_id
-CREATE OR REPLACE FUNCTION resolve_brand_id(raw_brand_name TEXT)
-RETURNS INTEGER AS $$
-DECLARE
-    normalized_name TEXT;
-    found_brand_id INTEGER;
-BEGIN
-    IF raw_brand_name IS NULL OR TRIM(raw_brand_name) = '' THEN
-        RETURN NULL;
-    END IF;
-
-    normalized_name := normalize_brand_name(raw_brand_name);
-
-    -- First check aliases
-    SELECT brand_id INTO found_brand_id
-    FROM brand_aliases
-    WHERE alias_normalized = normalized_name;
-
-    IF found_brand_id IS NOT NULL THEN
-        RETURN found_brand_id;
-    END IF;
-
-    -- Check brands table directly (case-insensitive)
-    SELECT id INTO found_brand_id
-    FROM brands
-    WHERE normalize_brand_name(name) = normalized_name;
-
-    RETURN found_brand_id;
-END;
-$$ LANGUAGE plpgsql;
-
--- Seed brand_aliases with existing brand names
-INSERT INTO brand_aliases (brand_id, alias, alias_normalized, source)
-SELECT
-    id,
-    name,
-    normalize_brand_name(name),
-    'canonical'
-FROM brands
-ON CONFLICT (alias_normalized) DO NOTHING;
-
--- Auto-generate aliases from store_products brand variations
-INSERT INTO brand_aliases (brand_id, alias, alias_normalized, source)
-SELECT DISTINCT ON (normalize_brand_name(sp.brand_name_raw))
-    b.id,
-    sp.brand_name_raw,
-    normalize_brand_name(sp.brand_name_raw),
-    'auto'
-FROM store_products sp
-CROSS JOIN LATERAL (
-    SELECT id, name
-    FROM brands
-    WHERE normalize_brand_name(brands.name) = normalize_brand_name(sp.brand_name_raw)
-    LIMIT 1
-) b
-WHERE sp.brand_name_raw IS NOT NULL
-  AND sp.brand_name_raw != ''
-ON CONFLICT (alias_normalized) DO NOTHING;
-
--- Add comment
-COMMENT ON TABLE brand_aliases IS 'Maps brand name variations to canonical brand IDs';
-COMMENT ON FUNCTION normalize_brand_name(TEXT) IS 'Normalizes brand name for case-insensitive matching';
-COMMENT ON FUNCTION resolve_brand_id(TEXT) IS 'Returns brand_id for a raw brand name, using aliases';
diff --git a/backend/migrations/100_backfill_brand_ids.sql b/backend/migrations/100_backfill_brand_ids.sql
deleted file mode 100644
index 874b639c..00000000
--- a/backend/migrations/100_backfill_brand_ids.sql
+++ /dev/null
@@ -1,41 +0,0 @@
--- Migration: Backfill brand_id in store_products using brand aliases
--- Links products to canonical brands via case-insensitive matching
-
--- Update store_products.brand_id using the resolve_brand_id function
-UPDATE store_products sp
-SET brand_id = resolve_brand_id(sp.brand_name_raw)
-WHERE sp.brand_name_raw IS NOT NULL
-  AND sp.brand_name_raw != ''
-  AND (sp.brand_id IS NULL OR sp.brand_id != resolve_brand_id(sp.brand_name_raw));
-
--- Create trigger to auto-link brand_id on insert/update
-CREATE OR REPLACE FUNCTION auto_link_brand_id()
-RETURNS TRIGGER AS $$
-BEGIN
-    IF NEW.brand_name_raw IS NOT NULL AND NEW.brand_name_raw != '' THEN
-        NEW.brand_id := COALESCE(resolve_brand_id(NEW.brand_name_raw), NEW.brand_id);
-    END IF;
-    RETURN NEW;
-END;
-$$ LANGUAGE plpgsql;
-
--- Drop trigger if exists and recreate
-DROP TRIGGER IF EXISTS trg_auto_link_brand_id ON store_products;
-CREATE TRIGGER trg_auto_link_brand_id
-    BEFORE INSERT OR UPDATE OF brand_name_raw ON store_products
-    FOR EACH ROW
-    EXECUTE FUNCTION auto_link_brand_id();
-
--- Log the results
-DO $$
-DECLARE
-    linked_count INTEGER;
-    unlinked_count INTEGER;
-BEGIN
-    SELECT COUNT(*) INTO linked_count FROM store_products WHERE brand_id IS NOT NULL;
-    SELECT COUNT(*) INTO unlinked_count FROM store_products WHERE brand_id IS NULL AND brand_name_raw IS NOT NULL;
-    RAISE NOTICE 'Brand linking complete: % products linked, % products unlinked', linked_count, unlinked_count;
-END $$;
-
-COMMENT ON FUNCTION auto_link_brand_id() IS 'Auto-links brand_id when brand_name_raw is set';
-COMMENT ON TRIGGER trg_auto_link_brand_id ON store_products IS 'Auto-links products to canonical brands on insert/update';