Use method param data as source of truth

[jhendrixMSFT]

Only use values from the operation param data that aren't captured in the method param data (e.g. header/path/query type etc). Update KV tsp to preserve existing behavior.

[Copilot]

Pull request overview

This pull request updates the parameter handling logic in the TypeSpec Rust code generator to use method parameter data as the source of truth instead of operation parameter data. This ensures that parameter attributes like optionality and type are correctly derived from method-level overrides rather than the base operation definition.

Changes:

• Modified adaptMethodParameter to accept an optional methodParam parameter and use it as the source of truth for parameter optionality, type, and documentation
• Updated KeyVault Secrets TypeSpec to add "!rust" filter to @@override decorators, preserving existing Rust behavior
• Generated code reflects the new parameter handling, correctly including the out_content_type query parameter for KeyVault secrets

Reviewed changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/typespec-rust/src/tcgcadapter/adapter.ts	Core logic change to adaptMethodParameter to use methodParam as source of truth for optionality, type, and docs
packages/typespec-rust/test/tsp/Security.KeyVault.Secrets/client.tsp	Added "!rust" filter to @@OverRide decorators to preserve existing Rust behavior
packages/typespec-rust/test/sdk/keyvault_secrets/src/generated/models/method_options.rs	Added out_content_type field to SecretClientGetSecretOptions
packages/typespec-rust/test/sdk/keyvault_secrets/src/generated/clients/secret_client.rs	Added query parameter handling for out_content_type
packages/typespec-rust/package.json	Version bump to 0.36.0
packages/typespec-rust/CHANGELOG.md	Added release notes for 0.36.0

[heaths]

Is the only reason I don't see Storage changes in here is because we need to make those yet? The KV changes make sense (see other comments) and I'm fixing those in the specs repo now.