feat: linecard system support, Cisco 8000 accuracy, price anomaly detection
API/finder:
- Add modular chassis support: sibling linecards fetched when is_linecard=true
- Add chassis linecards when system_type=modular
- Extend switch response: system_type, is_linecard, chassis_model, slot_type,
flexbox_compat_mode, flexbox_notes, description, switching_capacity_tbps,
total_ports, category, lifecycle_status, features, use_cases, linecards[]
API/transceivers:
- Filter price_observations with COALESCE(is_anomalous, false) = false
(direct prices + comparable market prices)
Scraper/db:
- Add PRICE_BOUNDS map (per form-factor min/max USD sanity bounds)
- Add isPriceAnomalous() — marks DB price_observations as is_anomalous=true
- Add competitor_verified flag: set true when valid competitor price stored
- upsertPriceObservation: skip prices outside sanity bounds, set competitor_verified
Scraper/hash:
- contentHash() now accepts Record<string,unknown> | string (union type)
to support both structured objects and legacy string callers
Scrapers (skylane, tscom, wiitek):
- Fix contentHash() call signature: pass objects not JSON.stringify strings
- Fix wiitek: remove invalid 'name' param, fix t.id → transceiverId
Migrations:
- Add is_anomalous, competitor_verified, competitor_verified_at,
image_primary columns
- Recreate sync_fully_verified trigger to include competitor_verified
- Add is_linecard, chassis_model, system_type, slot_type,
flexbox_compat_mode, flexbox_notes to switches table
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