improvement: typed result Containers

[jason-ha]

Details

PR type:

• Bug fix
• New feature / enhancement
• Documentation
• Samples or Test coverage

Change details

Support precisely typed IFluidContainers when given schema more specific than ContainerSchema.

code snippets:

Before:

    const schema: ContainerSchema = {
        initialObjects: {
            [testLiveEventKey]: LiveEvent,
        },
    };
    let results1: {
        container: IFluidContainer;
        services: AzureContainerServices;
    };
...
    results1 = await client1.createContainer(schema);

After:

    const schema = {
        initialObjects: {
            [testLiveEventKey]: LiveEvent,
        },
    } as const satisfies ContainerSchema;
    let results1: {
        container: IFluidContainer<typeof schema>;
        services: AzureContainerServices;
    };
...
    results1 = await client1.createContainer(schema);

screenshots:
Before:

After:

[ryanbliss]

LGTM