DBP-126: backend 新增 addPointRecord mutation

[pan93412]

• chore: upgrade dependencies
• feat: add create mutation to Point model
• feat: add CreatePoint mutation

[linear]

DBP-126 backend 新增 addPointRecord mutation

[Copilot]

Pull Request Overview

This PR adds a new GraphQL mutation for creating point records in the backend system. The main changes include:

• Adding a createPoint mutation to the GraphQL schema with proper scope protection
• Implementing the resolver to handle point record creation
• Updating schema annotations to enable mutation generation
• Upgrading several Go dependencies (posthog-go, google.golang.org/api)

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
graph/user.resolvers.go	Implements the CreatePoint mutation resolver
graph/user.graphqls	Adds the createPoint mutation definition with point:write scope
graph/ent.graphqls	Defines CreatePointInput for the mutation
ent/schema/point.go	Enables mutation creation for Point model
ent/gql_mutation_input.go	Generated code for CreatePointInput structure and methods
ent/internal/schema.go	Auto-generated schema update reflecting Point model changes
go.mod	Updates dependencies to newer versions
docs/scope.md	Documents the new point:write scope

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