feat(contacts): full People API parity — update, batch ops, directory search, photos

[omriariav]

Context

gws contacts covers 5 commands (list, search, get, create, delete). The People API has ~9 more useful methods.

Full gap analysis

Missing — 9 methods

Command	API Method	Args/Flags
contacts update <resource>	people.updateContact	--email, --phone, --name, etc.
contacts batch-create	people.batchCreateContacts	--file (JSON)
contacts batch-update	people.batchUpdateContacts	--file (JSON)
contacts batch-delete	people.batchDeleteContacts	--resources
contacts directory	people.listDirectoryPeople	--max, --query (org directory)
contacts directory-search	people.searchDirectoryPeople	--query (org directory search)
contacts photo <resource>	people.updateContactPhoto	--file
contacts delete-photo <resource>	people.deleteContactPhoto	positional
contacts resolve	people.getBatchGet	--ids (already used internally for chat members, expose as command)

Already covered

Command	API Method
contacts list	people.connections.list
contacts search	people.searchContacts
contacts get	people.get
contacts create	people.createContact
contacts delete	people.deleteContact

Scopes

Current scopes (contacts.readonly, contacts) cover most methods. Directory access may need directory.readonly.

Acceptance criteria

• All 9 new commands implemented and tested
• Skills and README updated
• Version bump