Invalidate snapshot when underlying (abi) jar changes

…ation enabling

Properly hook up flags to control build tool API / incremental compilation enabling

Do not create snapshots for non-incremental scenario

Restore temporary working directory logic

# Conflicts:
#	kotlin/internal/toolchains.bzl
#	src/main/protobuf/kotlin_model.proto
#	src/main/starlark/core/repositories/versions.bzl

# Conflicts:
#	kotlin_rules_maven_install.json
#	src/main/kotlin/io/bazel/kotlin/builder/tasks/BUILD.bazel

# Conflicts:
#	src/main/kotlin/io/bazel/kotlin/builder/BUILD

# Conflicts:
#	kotlin_rules_maven_install.json
#	src/main/kotlin/io/bazel/kotlin/compiler/BuildToolsAPICompiler.kt

- Eliminated `BazelK2JVMCompiler` and replaced its functionality with `BuildToolsAPICompiler`.
- Removed `experimental_build_tools_api` flag and its associated dependencies, including Bazel and Starlark definitions.
- Updated the Kotlin toolchain to include the `kotlin_compiler_embeddable` dependency.
- Adjusted documentation, tests, and build configuration to reflect these changes.

# Conflicts:
#	README.md
#	kotlin/internal/jvm/compile.bzl
#	kotlin/internal/toolchains.bzl
#	kotlin/settings/BUILD.bazel
#	kotlin/settings/BUILD.release.bazel
#	src/main/kotlin/BUILD.release.bazel
#	src/main/kotlin/io/bazel/kotlin/builder/cmd/BUILD.bazel
#	src/main/kotlin/io/bazel/kotlin/builder/tasks/KotlinBuilder.kt
#	src/main/protobuf/kotlin_model.proto
#	src/main/starlark/core/repositories/initialize.release.bzl
#	src/main/starlark/core/repositories/versions.bzl
#	src/test/kotlin/io/bazel/kotlin/defs.bzl

This change enables Windows builds and tests in the CI pipeline and fixes
various Windows compatibility issues throughout the codebase.

Platform-specific path handling:
- Replace /dev/null with ctx.actions.declare_file for null outputs on Windows
- Use platform-appropriate path separators in classpath construction
- Fix bzlmod classpath resolution for Kotlin compiler on Windows

Ktlint fixes:
- Simplify ktlint_fix and ktlint_test implementations
- Use proper argument files instead of shell-specific constructs
- Remove windows.bzl utility in favor of inline platform checks

Test infrastructure:
- Convert integration test runner to java_binary for cross-platform support
- Fix temporary file handling in tests for Windows compatibility
- Update test assertions to handle platform-specific path formats

CI configuration:
- Enable Windows builds in presubmit.yml
- Add Windows-specific bazelrc configurations
- Update MODULE.bazel with Windows toolchain support

… kotlin-compiler-arguments-description artifact from JetBrains.

  - Auto-generated options: WriteKotlincCapabilities generates both capabilities.bzl (flag existence/stability metadata) and generated_opts.bzl (full typed Starlark options) from the compiler metadata artifact.
  - Simplified maintenance: Manual _KOPTS dict replaced with GENERATED_KOPTS import, with _MANUAL_KOPTS for special cases only.

  Changes:

  - Add kotlin-compiler-arguments-description dependency (version must match kotlin compiler version)
  - Rewrite WriteKotlincCapabilities to use the new artifact
  - Generate generated_opts_X.Y.bzl with attr.bool for booleans, attr.string for strings, attr.string_list for arrays
  - Simplify opts.kotlinc.bzl to merge generated + manual options

# Conflicts:
#	docs/kotlin.md
#	src/main/starlark/core/options/opts.kotlinc.bzl
#	src/main/starlark/core/repositories/kotlin/capabilities_2.3.bzl.com_github_jetbrains_kotlin.bazel

# Conflicts:
#	MODULE.bazel

# Conflicts:
#	kotlin/compiler/compiler_deps.bzl
#	src/main/starlark/core/repositories/compiler.bzl