fix: guard empty ai-task issues in ai-implement and inject build date into release body

[ModerRAS]

Two CI fixes:

1. ai-implement.yml - Guard against empty �i-task issues list to prevent 404 crash when no issues are found (was making request to issues//comments)

2. push.yml release notes - Release body template variables (e.g. $(date ...)) were not being substituted because they were never evaluated. Added a Generate release body PowerShell step that properly resolves Get-Date and writes a
   elease-body.md file, then passes it via �ody_path to softprops/action-gh-release alongside generate_release_notes: true.

Also includes pre-existing LLM provider changes from workspace

• OpenAIResponsesService.cs (new)
• LLMFactory, ModelCapabilityService, LLMProvider updates
• LlmServiceProxy, test updates

Summary by CodeRabbit

Release Notes

• New Features
  • Added OpenAI Responses API as a new language model provider option for chat generation
  • Supports streaming responses with integrated function calling capabilities
  • Enables image analysis, text embeddings generation, and model capability detection
  • Includes conversation history management and session continuation through snapshot-based restoration

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

The PR introduces OpenAI's Responses API as a new LLM provider and improves GitHub Actions workflows. A new ResponsesAPI enum value is registered, a full OpenAIResponsesService implementation handles chat execution with tool calling and snapshot resumption, and factory/proxy classes wire the service into the DI container. Additionally, GitHub Actions workflows are updated to handle missing issues gracefully and generate custom release bodies.

Changes

GitHub Actions Workflow Updates

Layer / File(s)	Summary
AI Implement Issue Selection .github/workflows/ai-implement.yml	Early-return guard added when no ai-task-labeled issues exist; comment lookup and plan detection now proceed only when issues list is non-empty.
Push Workflow Release Body .github/workflows/push.yml	New step generates a Markdown release-body.md file with version and date; publish step passes it via body_path to GitHub Release.

OpenAI Responses API Provider Integration

Layer / File(s)	Summary
Provider Enum TelegramSearchBot.Common/Model/AI/LLMProvider.cs	New ResponsesAPI = 7 enum value added.
Service Implementation TelegramSearchBot.LLM/Service/AI/LLM/OpenAIResponsesService.cs	New transient injectable service that implements IService and ILLMService, using OpenAI's Responses API for streaming chat with tool calling, snapshots for continuation, and auxiliary methods for embeddings, model listing, and image analysis.
Factory Registration TelegramSearchBot.LLM/Service/AI/LLM/LLMFactory.cs	LLMFactory accepts OpenAIResponsesService dependency and registers it in _services under ResponsesAPI key.
Capability Resolution TelegramSearchBot.LLM/Service/AI/LLM/ModelCapabilityService.cs	GetLLMService switch resolves ResponsesAPI provider to OpenAIResponsesService instance.
Service Proxy Wiring TelegramSearchBot.LLMAgent/Service/LlmServiceProxy.cs	ResolveService maps ResponsesAPI to OpenAIResponsesService; ApplyBotIdentity sets BotName on the service.
Test Fixtures TelegramSearchBot.LLM.Test/Service/AI/LLM/LLMFactoryTests.cs	Constructor creates OpenAIResponsesService mock and passes it to updated LLMFactory.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• ModerRAS/TelegramSearchBot#312: Both PRs modify .github/workflows/push.yml, specifically release publishing and body generation logic.
• ModerRAS/TelegramSearchBot#234: Both PRs update .github/workflows/ai-implement.yml to handle issue selection and early-return cases for missing issues.
• ModerRAS/TelegramSearchBot#189: Earlier version of ai-implement.yml workflow logic related to issue and comment handling in the same workflow step.

Poem

🐰 A new Responses API hops in to stay,
With tools that call and snapshots to replay,
The workflows now won't stumble when lists are bare,
Release bodies bloom with markdown flair,
Provider seven thrives with streaming care!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 58.62% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 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 two main fixes: guarding empty ai-task issues in ai-implement workflow and injecting build date into release body in push workflow, with additional context about LLM provider changes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ 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 fix/ci-and-release-notes

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[github-actions]

PR Check Report

Summary

• PR: fix: guard empty ai-task issues in ai-implement and inject build date into release body #343
• Branch: fix/ci-and-release-notes <- master
• Event: pull_request
• Commit: 1286df6

Test Results

Platform	Status	Details
Ubuntu	Passed	Tests passed, artifacts uploaded
Windows	Passed	Tests passed, artifacts uploaded

Code Quality

• Code formatting check
• Security vulnerability scan
• Dependency analysis
• Code coverage collection

Test Artifacts

• Test results artifacts count: 2
• Code coverage uploaded to Codecov

Links

• PR Page
• Actions Logs

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This report is auto-generated by GitHub Actions