Generate only the types used by service signatures in C# client proxies

[maliming]

CSharpServiceProxyGenerator now generates the DTOs and enums reachable from the service signatures instead of every type under the service namespace, so a client without the *.Application.Contracts reference compiles.

System.*, Microsoft.* and Volo.* types come from their packages and are no longer generated, same-named types are referenced by their full names, and regenerating removes the generated files that are no longer needed.

[Copilot]

Copilot review overview

🟡 Changes recommended

Two critical and two moderate issues remain unresolved.

Get a fresh assessment by requesting another Copilot review.

Review effort: Lite
Findings: 2 · 1

Open (3)

• Convert nested CLR type names to valid C# syntax · New
• Use a netstandard2.0-compatible StringComparer API · New
• Include signature types when computing proxy type ambiguities · New

What changed in this PR

Updates C# proxy generation to emit only types reachable from service signatures and remove obsolete generated files.

Changes:

• Adds recursive type discovery and framework-type filtering.
• Handles generic and ambiguous type references.
• Expands tests for regeneration, naming, and casing behavior.

File	Summary
framework/​test/​Volo.Abp.Cli.Core.Tests/​Volo/​Abp/​Cli/​ServiceProxying/​CSharp/​CSharpServiceProxyGenerator_Tests.cs	Tests selective generation and cleanup. Moderate issue (1 vote): casing-only file moves may fail on case-insensitive filesystems.
framework/​src/​Volo.Abp.Cli.Core/​Volo/​Abp/​Cli/​ServiceProxying/​CSharp/​CSharpServiceProxyGenerator.cs	Implements selective generation, filtering, qualification, and cleanup. Critical issues (3 votes, 1 vote): incompatible StringComparer API and invalid nested-type name generation. Moderate issue (3 votes): ambiguity detection omits signature types when contracts are excluded.

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

[codecov]

Codecov Report

❌ Patch coverage is 93.20000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.29%. Comparing base (c80c6f8) to head (2f1ef6d).
⚠️ Report is 26 commits behind head on dev.

Files with missing lines	Patch %	Lines
...viceProxying/CSharp/CSharpServiceProxyGenerator.cs	93.20%	12 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #26205      +/-   ##
==========================================
+ Coverage   49.90%   50.29%   +0.38%     
==========================================
  Files        3842     3842              
  Lines      135458   135607     +149     
  Branches    10271    10295      +24     
==========================================
+ Hits        67597    68198     +601     
+ Misses      65823    65346     -477     
- Partials     2038     2063      +25     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.