[Refactor] Make document context environments to use abstract base classes

[BGMSound]

No description provided.

[github-actions]

Test Results

17 tests   17 ✅  12s ⏱️
 9 suites   0 💤
 9 files     0 ❌

Results for commit 442bfa9.

[github-actions]

Code Coverage Report

Overall Project	37.1% -2.49%	🍏
Files changed	32.96%	🍏

Module	Coverage
Kover Gradle Plugin XML report for :	70.25% -1.31%	🍏
Kover Gradle Plugin XML report for :documentify-core	0.55% -2.28%	❌
Kover Gradle Plugin XML report for :documentify-starters:documentify-mvc	0.47% -6.59%	❌
Kover Gradle Plugin XML report for :documentify-starters:documentify-reactive	0.43% -6.18%	❌

Files

Module	File	Coverage
Kover Gradle Plugin XML report for :	StandaloneReactiveContextEnvironment.kt	89.19%	🍏
	StandaloneMvcContextEnvironment.kt	82.14%	🍏
	AbstractStandaloneContextEnvironment.kt	43.16% -26.32%	🍏
	ValidatableMockMvcResponseAdapter.kt	24.44%	🍏
	StandaloneContextEnvironment.kt	0%	❌
	AbstractMvcDocumentContextEnvironment.kt	0%	❌
	MvcDocumentContextEnvironment.kt	0%	❌
	MockMvcContextEnvironment.kt	0% -16.67%	❌
	WebApplicationContextEnvironment.kt	0% -7.41%	❌
	AbstractReactiveDocumentContextEnvironment.kt	0%	❌
	ReactiveDocumentContextEnvironment.kt	0%	❌
	ApplicationContextEnvironment.kt	0% -7.41%	❌
	WebTestClientContextEnvironment.kt	0% -7.69%	❌
Kover Gradle Plugin XML report for :documentify-core	StandaloneContextEnvironment.kt	0%	❌
	AbstractStandaloneContextEnvironment.kt	0% -61.05%	❌
Kover Gradle Plugin XML report for :documentify-starters:documentify-mvc	MockMvcContextEnvironment.kt	0% -16.67%	❌
	StandaloneMvcContextEnvironment.kt	0% -37.5%	❌
	WebApplicationContextEnvironment.kt	0% -7.41%	❌
	ValidatableMockMvcResponseAdapter.kt	0%	🍏
	AbstractMvcDocumentContextEnvironment.kt	0%	❌
	MvcDocumentContextEnvironment.kt	0%	❌
Kover Gradle Plugin XML report for :documentify-starters:documentify-reactive	AbstractReactiveDocumentContextEnvironment.kt	0%	❌
	ReactiveDocumentContextEnvironment.kt	0%	❌
	ApplicationContextEnvironment.kt	0% -7.41%	❌
	StandaloneReactiveContextEnvironment.kt	0% -23.24%	❌
	WebTestClientContextEnvironment.kt	0% -7.69%	❌