Add initial implementation of QueryCollection

[KyleAMathews]

Fixes#4

consttodoCollection=createQueryCollection({queryKey: [`todoItems`],queryFn: async()=>fetch(`/api/todos`),getPrimaryKey: (item)=>item.id})constuserCollection=createQueryCollection({queryKey: [`userItems`],queryFn: async()=>fetch(`/api/users`),getPrimaryKey: (item)=>item.id})const{data: completedTodos}=useLiveQuery(q=>q.from({ todoCollection }).join({from: userCollection,on: [`@todoCollection.user_id`,`=`,`@userCollection.id`]}).where(`@todoCollection.is_completed`,`=`,true))// MutationconsttoggleIsCompleted=useOptimisticMutation({ mutationFn })toggleIsCompleted.mutate(()=>todoCollection.update(todo,(draft)=>draft.is_completed=!draft.is_completed))

TODOs

• update the example
• can we also accept an already created query instance?

[changeset-bot]

🦋 Changeset detected

Latest commit: f967d9c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@tanstack/db-collections	Patch
examples/react/todo	Patch

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[pkg-pr-new]

examples/react/todo

npm i https://pkg.pr.new/@tanstack/db-collections@62

npm i https://pkg.pr.new/@tanstack/optimistic@62

npm i https://pkg.pr.new/@tanstack/react-optimistic@62

commit: f967d9c