Remove Hosting and Abstractions projects and related code

[snovak7]

Closes #261

Summary by Sourcery

Remove deprecated Hosting and Abstractions projects from the solution and codebase.

Enhancements:

• Clean up solution by deleting the Abstractions and Hosting projects and their source files.

Chores:

• Remove obsolete public API listings, assembly metadata, and documentation associated with the deleted Hosting and Abstractions projects.

Summary by CodeRabbit

• Revert
  • Removed Orleans distributed application framework integration.
  • Removed Temporal workflow orchestration support.
  • Removed ADO.NET data persistence integration.
  • Removed NATS messaging integration.
  • Removed service defaults and configuration helpers.
  • Removed associated documentation.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 490d20a9-018c-4058-b5af-c516dd4e57e6

📥 Commits

Reviewing files that changed from the base of the PR and between 83eaa76 and 6f86eb1.

📒 Files selected for processing (24)

• Solution.slnx
• src/Abstractions/Constants.cs
• src/Abstractions/Escendit.Extensions.Hosting.Abstractions.csproj
• src/Abstractions/Properties/AssemblyInfo.cs
• src/Abstractions/PublicAPI.Shipped.txt
• src/Abstractions/PublicAPI.Unshipped.txt
• src/Abstractions/README.md
• src/Abstractions/TemporalOptions.cs
• src/Abstractions/packages.lock.json
• src/Hosting/Escendit.Extensions.Hosting.csproj
• src/Hosting/Exceptions/ConfigurationMissingException.cs
• src/Hosting/HostApplicationBuilderExtensions.AdoNet.cs
• src/Hosting/HostApplicationBuilderExtensions.Nats.cs
• src/Hosting/HostApplicationBuilderExtensions.Orleans.cs
• src/Hosting/HostApplicationBuilderExtensions.Secrets.cs
• src/Hosting/HostApplicationBuilderExtensions.ServiceDefaults.cs
• src/Hosting/HostApplicationBuilderExtensions.Shared.cs
• src/Hosting/HostApplicationBuilderExtensions.Temporal.cs
• src/Hosting/Properties/AssemblyInfo.cs
• src/Hosting/PublicAPI.Shipped.txt
• src/Hosting/PublicAPI.Unshipped.txt
• src/Hosting/README.md
• src/Hosting/Validators/TemporalOptionsValidator.cs
• src/Hosting/packages.lock.json

💤 Files with no reviewable changes (23)

• src/Hosting/PublicAPI.Shipped.txt
• src/Abstractions/PublicAPI.Shipped.txt
• src/Abstractions/Properties/AssemblyInfo.cs
• src/Abstractions/Constants.cs
• src/Hosting/HostApplicationBuilderExtensions.Temporal.cs
• src/Hosting/Validators/TemporalOptionsValidator.cs
• src/Abstractions/Escendit.Extensions.Hosting.Abstractions.csproj
• src/Hosting/Properties/AssemblyInfo.cs
• src/Hosting/README.md
• src/Hosting/HostApplicationBuilderExtensions.ServiceDefaults.cs
• src/Hosting/HostApplicationBuilderExtensions.Orleans.cs
• src/Hosting/Escendit.Extensions.Hosting.csproj
• src/Hosting/PublicAPI.Unshipped.txt
• src/Abstractions/packages.lock.json
• src/Abstractions/README.md
• src/Hosting/Exceptions/ConfigurationMissingException.cs
• src/Abstractions/PublicAPI.Unshipped.txt
• src/Abstractions/TemporalOptions.cs
• src/Hosting/HostApplicationBuilderExtensions.Secrets.cs
• src/Hosting/HostApplicationBuilderExtensions.AdoNet.cs
• src/Hosting/HostApplicationBuilderExtensions.Shared.cs
• src/Hosting/packages.lock.json
• src/Hosting/HostApplicationBuilderExtensions.Nats.cs

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Walkthrough

This PR removes the entire src/Abstractions and src/Hosting project folders from the solution, including their source files, project configurations, build metadata, and dependencies. The Solution.slnx is updated to reflect these project removals.

Changes

Abstractions and Hosting Project Removal

Layer / File(s)	Summary
Solution & Project Configuration Solution.slnx, src/Abstractions/Escendit.Extensions.Hosting.Abstractions.csproj, src/Hosting/Escendit.Extensions.Hosting.csproj	Solution file is updated to remove references to the Abstractions and Hosting projects. Project .csproj files are deleted, eliminating SDK declarations, NuGet package references, and PublicAPI metadata configurations.
Public API & Core Implementations src/Abstractions/Constants.cs, src/Abstractions/TemporalOptions.cs, src/Hosting/Exceptions/ConfigurationMissingException.cs, src/Hosting/HostApplicationBuilderExtensions.*.cs, src/Hosting/Validators/TemporalOptionsValidator.cs	Core public APIs are removed: Constants.Runtime.Server (Name, Source), TemporalOptions record, ConfigurationMissingException, and all HostApplicationBuilderExtensions partial classes covering ADO.NET clustering/persistence/reminders, Orleans runtime, NATS streaming, Secrets, ServiceDefaults, Temporal integration, and shared configuration helpers.
Configuration & Metadata src/Abstractions/Properties/AssemblyInfo.cs, src/Abstractions/PublicAPI.*.txt, src/Abstractions/README.md, src/Hosting/Properties/AssemblyInfo.cs, src/Hosting/PublicAPI.*.txt, src/Hosting/README.md	Assembly-level attributes (CLSCompliant, ComVisible) are removed. PublicAPI shipped/unshipped files are deleted, eliminating tracked public surface declarations. Package documentation (README.md) is removed.
Dependency Management src/Abstractions/packages.lock.json, src/Hosting/packages.lock.json	NuGet lock files are deleted, removing pinned dependency versions and metadata for both projects.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• Add Hosting and Abstractions projects with initial dependencies and configuration #5: Originally introduced the Hosting and Abstractions projects along with HostApplicationBuilderExtensions, TemporalOptions, and ConfigurationMissingException—this PR directly removes all those additions.
• Add Temporal extensions #19: Introduced Temporal-related APIs (TemporalOptions, validator, HostApplicationBuilderExtensions.Temporal methods)—this PR removes them completely.
• Add Orleans Runtime #24: Added the AddOrleansServerRuntime extension method and Orleans instrumentation—this PR removes the same extension and file.

Suggested labels

enhancement

Suggested reviewers

• sourcery-ai

Poem

🐰 Two folders take their final bow,
Abstractions and Hosting, till now,
Constants and options fade away,
Extensions removed—a cleaner day!
The solution simplifies with pride,
Leaving only what's inside. ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title accurately describes the main objective—removing Hosting and Abstractions projects and related code—matching the extensive deletions documented in the changeset.
Linked Issues check	✅ Passed	The PR successfully addresses issue #261's objective to remove the Hosting and Abstractions packages, deleting all associated project files, code, and configuration artifacts.
Out of Scope Changes check	✅ Passed	All changes are directly related to removing the Hosting and Abstractions projects; no unrelated or out-of-scope modifications are present.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 261-remove-hosting-and-abstractions-projects

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