feat(services-dotnet-asp-platform): complete ASP.NET generation and evidence

[LMLiam]

Why

• The ASP.NET branch had drifted into generating synthetic runtime behaviour that the DSL does not actually describe, which made the generated service surface misleading.
• ASP.NET port allocation had regressed from stable, configurable allocation to simple index-based defaults.
• The fixture, CI, and documentation surface had followed the concrete-controller layout and needed to be brought back into line with an honest extension-oriented design.

What Changed

• restored stable ASP.NET port allocation, including configured port handling and collision detection
• replaced the synthetic controller/parser/status-override surface with generated hosting extensions, contract records, abstract controller bases, and response result mapping derived from the REST model
• added compile-time validation that rejects unsupported request-binding shapes such as reference-typed path or query fields, and fixed nuint default rendering with a 64-bit-safe literal
• realigned generation tests, script-host tests, native build-tool tests, runtime e2e coverage, README, and CI checks around the generated base-controller layout and user-authored derived controllers
• kept .microsmith/origins.json output-root discovery and provenance support intact across the updated ASP.NET surface

Validation

• ./gradlew --no-daemon --no-build-cache --max-workers=1 -Dkotlin.compiler.execution.strategy=in-process :artifact-services-dotnet-asp:jvmKotest :compile-services-dotnet-asp:jvmKotest --stacktrace
• ./gradlew --no-daemon --no-build-cache --max-workers=1 -Dkotlin.compiler.execution.strategy=in-process :gen:jvmKotest :runtime-scripting:jvmKotest :gradle-plugin:test :maven-plugin:jvmKotest :sbt-plugin:jvmKotest --stacktrace
• ruby -e 'require "yaml"; %w[.github/workflows/build_test_qodana.yml examples/non-gradle/dotnet/.github/workflows/microsmith.yml examples/gradle/dotnet/.github/workflows/microsmith.yml examples/maven/dotnet/.github/workflows/microsmith.yml examples/sbt/dotnet/.github/workflows/microsmith.yml].each { |path| YAML.load_file(path) }'

[chatgpt-codex-connector]

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