Service Default Status

When a service is added to a new quote, it defaults to Pending (not Approved).

Locations (3 code paths in `QuoteGenerator.tsx`)

Path	Line	Description
`handleAdd`	~147	Catalog search picker
RO import	~777-778	Loading services from a Repair Order
`handleAddSuggestion`	~959-960	AI-suggested services

All three set approved: false, customerDecision: 'pending' instead of the old default of approved: true, customerDecision: 'approved'.

The approve/decline/pending toggle buttons in the service list are unchanged — the advisor explicitly approves each service
The billableServices() helper in src/lib/totals.ts handles mixed approved/pending correctly: counts all when unanimous, only approved when mixed
The "Convert to RO" flow filters on s.approved, so only approved services become RO line items