feat: phase r1+r2 recovery + r3-0 swiftly api ingestion

R1 stabilization: pytest harness with transactional db fixture, smoke
+ alembic + auth + scrape + approval + swiftly tests, github actions
ci yaml. Bearer-token admin auth + signed-cookie session for family
ui mutations. Async POST /api/admin/scrape (BackgroundTasks, returns
202). Path canonicalization (no /list, /planned suffixes). DATABASE_URL
fail-fast on empty.

R2 deferred-risk spikes: live lucky california fetch (R2-A), full
email+per-voter approval click round trip with single-use enforcement
(R2-B, console email backend, sendgrid stub).

R3-0 phase 3 redesign: replaced playwright html scraper with requests
based swiftly json api client. 17 categories, ~10k products per scrape,
upsert by (source, external_id). 401 surfaces actionable token-refresh
message via ScrapeLog.error_message.

Pre-existing defects fixed: shopping_list.py syntax error blocking app
import, MealPlan.votes orphan relationship, JSONB(astext=True) invalid
kwarg, missing requests dep, calorie_target schema drift, every SQLEnum
needed values_callable, 0001 had empty downgrade(), seed had duplicate
ingredient rows.

Migrations added: 0003 grocery_item.description, 0004 family_profile.
calorie_target, 0005 grocery_item.external_id + source + composite index.

Verified: 31/31 pytest green, alembic upgrade->downgrade->upgrade clean,
frontend npm run build clean, live scrape 9,960 grocery_item rows in 36s.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

backend/alembic/versions/0002_seed_data.py

@@ -95,8 +95,6 @@ def upgrade() -> None:
         ('Sugar', 'sugar', 'lb', 'Pantry', 2.49),
         ('Brown Rice', 'brown rice', 'lb', 'Grains', 3.49),
         ('Oats', 'oats', 'lb', 'Grains', 2.99),
-        ('Chickpeas', 'chickpeas', 'can', 'Canned Goods', 1.49),
-        ('Black Beans', 'black beans', 'can', 'Canned Goods', 1.29),
         ('Kidney Beans', 'kidney beans', 'can', 'Canned Goods', 1.29),
         ('Corn', 'corn', 'can', 'Canned Goods', 1.49),
         ('Green Beans', 'green beans', 'can', 'Canned Goods', 1.49),
@@ -107,6 +105,7 @@ def upgrade() -> None:
         op.execute(f"""
             INSERT INTO ingredient (id, name, name_lower, unit, aisle, typical_price)
             VALUES (uuid_generate_v4(), '{name}', '{name_lower}', '{unit}', '{aisle}', {price})
+            ON CONFLICT (name_lower) DO NOTHING
         """)