feat(ir): add typed builder for AzureContainerApps@1

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Summary

Adds a typed builder struct for AzureContainerApps@1 to the ado-aw IR.

Motivation

Previously, any code that needed to emit an Azure Container Apps deploy step had to hand-craft TaskStep::new(...) with raw string input keys. This PR introduces a typed builder struct (new(<required>) + typed optional setters + into_step()) so required inputs are positional, optional inputs and their constrained values are type-checked, and call sites stop using stringly-typed keys.

Changes

• src/compile/ir/tasks/azure_container_apps.rs: new AzureContainerApps builder struct, ContainerAppIngress enum, and a #[cfg(test)] mod tests with 6 tests covering required-only, deploy-existing-image, build-from-source, ingress enum variants, optional fields, and yaml-config-path patterns.
• src/compile/ir/tasks/mod.rs: pub mod azure_container_apps; declaration (alphabetical order, between azure_cli and azure_key_vault).

ADO Task Reference

• Task: AzureContainerApps@1
• Docs: (https://learn.microsoft.com/en-us/azure/devops/pipelines/tasks/reference/azure-container-apps-v1)
• Required inputs: azureSubscription (Azure RM service connection)
• Optional inputs: workingDirectory, appSourcePath, acrName, acrUsername, acrPassword, dockerfilePath, imageToBuild, imageToDeploy, containerAppName, resourceGroup, containerAppEnvironment, runtimeStack, targetPort, location, environmentVariables, ingress (typed ContainerAppIngress enum), yamlConfigPath, disableTelemetry

Usage examples

Deploy an existing image:

use crate::compile::ir::tasks::azure_container_apps::AzureContainerApps;

Step::Task(
    AzureContainerApps::new("my-azure-sc")
        .image_to_deploy("myacr.azurecr.io/myapp:latest")
        .container_app_name("my-app")
        .resource_group("my-rg")
        .into_step(),
)

Build from source and deploy:

Step::Task(
    AzureContainerApps::new("my-azure-sc")
        .app_source_path("$(System.DefaultWorkingDirectory)")
        .acr_name("mytestacr")
        .ingress(ContainerAppIngress::External)
        .target_port("3000")
        .into_step(),
)

Validation

• cargo build --all-targets
• cargo test azure_container_apps — 6 tests, all pass
• cargo clippy --all-targets --all-features --workspace -- -D warnings

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Created by the ado-task-ir-contributor workflow.

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