Add GetMappedCPL method to root moviebuff package

[Copilot]

Implements GetMappedCPL in the root moviebuff package to match the v2 package implementation from PR #15. The root package acts as a simplified wrapper that removes context parameters.

Changes

• mapped_cpl.go: Type aliases exposing v2 structs (MappedCPL, MappedCPLMovie, MappedCPLPart)
• moviebuff.go: Interface method and implementation delegating to v2.GetMappedCPL(context.Background(), cplID)
• go.mod: Updated to use v2 dependency with commit 377fbb6

Usage

mb := moviebuff.New(moviebuff.Config{
    HostURL:     "https://api.moviebuff.com",
    StaticToken: "your-token",
})

cpl, err := mb.GetMappedCPL("ab9754d6-b1cf-4185-8554-4fc505670d7f")
if err != nil {
    // Handle error
}
fmt.Printf("Movie: %s, Part: %s\n", cpl.Movie.Name, cpl.Movie.Part.Name)

Follows the established pattern where root package methods wrap v2 methods with context.Background() for backward compatibility. No additional unit tests are included as the wrapper relies on existing v2 package test coverage.

Original prompt

A PR exists - @RealImage/moviebuff-sdk-go/pull/15 that implements the GetMappedCPL method and MappedCPL type in the v2 package. I want you to implement the same thing for the moviebuff package, but this will internally use the v2 type and method itself. Refer the other files in moviebuff package.

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[navratan3]

@copilot Please use the commit id 377fbb6 for moviebuff-sdk-go/v2 dependency instead of replace directive

[Copilot]

Updated to use v2 dependency with commit 377fbb6 and removed the replace directive. Changes in commit 354e13e.

[navratan3]

The unit test here seems redundant as we already have one for v2. Since this method is just a wrapper around v2 we don't need a unit test

[Copilot]

Removed the redundant unit tests since this is just a wrapper around v2. Changes in commit 354e13e.