[Nitro CLI] Add stage delete command

[PascalSenn]

No description provided.

[Copilot]

Pull request overview

This PR introduces a new nitro stage delete command backed by a new forceDeleteStageById GraphQL mutation, and updates the CLI GraphQL schema/operation documents accordingly.

Changes:

• Add a new stage delete subcommand (DeleteStageCommand) that calls forceDeleteStageById.
• Add the GraphQL mutation document used by the command.
• Update schema.graphql to include forceDeleteStageById (and a large set of additional schema directive/annotation updates).

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 4 comments.

File	Description
src/Nitro/CommandLine/src/CommandLine/schema.graphql	Adds forceDeleteStageById input/payload/error union and updates many fields with directives (@cost, @listSize, @authorize).
src/Nitro/CommandLine/src/CommandLine/Commands/Stages/StageCommand.cs	Registers the new delete subcommand under stage.
src/Nitro/CommandLine/src/CommandLine/Commands/Stages/DeleteStageCommand.graphql	Defines the mutation operation used by the CLI to force-delete a stage and return the updated stages list.
src/Nitro/CommandLine/src/CommandLine/Commands/Stages/DeleteStageCommand.cs	Implements the nitro stage delete command, including confirmation and result formatting.

Comments suppressed due to low confidence (1)

src/Nitro/CommandLine/src/CommandLine/schema.graphql:3483

• The deprecation reason string has a grammar issue: "Not longer in use" should be "No longer in use".

  throughput(from: DateTime! operationKinds: [OperationKind!] @deprecated(reason: "Not longer in use") to: DateTime!): OperationThroughputGraph

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[tobias-tengler]

You have to re-generate the persisted operations the command for it is in the README.md in the CLI project

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (ff9cb02) to head (f0632ee).
⚠️ Report is 20 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #9417   +/-   ##
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