Add agent configuration files and community documentation

[Copilot]

Transfers and adapts agent configuration files from TemplateDotNetLibrary and adds standard community docs, adjusted for a repo that contains only SPDX workflow YAML files and C# MSTest V4 tests (no C# production code).

Agent files (.github/agents/)

• code-quality-agent.md – Scoped to YAML linting + C# test build; no dotnet format/dotnet build for production code
• requirements-agent.md – Treats requirements.yaml as present; CI enforcement via dotnet reqstream documented
• software-developer.md – YAML-first: literate comment style, mandatory header block convention, .yamllint.yaml rules; no C# production code guidance
• technical-writer.md – Explicitly lists CONTRIBUTING.md, SECURITY.md, CODE_OF_CONDUCT.md as managed files with an explicit "Don't remove" rule
• test-developer.md – Adapted for testing via WorkflowTest.RunWorkflow(); uses WorkflowName_Scenario_ExpectedBehavior naming convention; includes [GeneratedRegex] / Assert.MatchesRegex patterns specific to this codebase

Community documentation

• CONTRIBUTING.md – Drops NuGet/production C# sections; adds YAML workflow coding standards; updates build commands to dotnet test against the test project
• SECURITY.md – Replaces library-usage section with a workflow integrity section (integrity hash pinning)
• CODE_OF_CONDUCT.md – Standard Contributor Covenant 2.1; only repo URLs updated

AGENTS.md

Quick-reference reflecting the YAML + C# tests stack, all five agents, and the full set of community docs. Includes:

• requirements.yaml listed in Key Files (treated as present)
• Test naming convention updated to WorkflowName_Scenario_ExpectedBehavior
• Documentation section aligned with template: User Guide (docs/guide/guide.md), Requirements (requirements.yaml → auto-generated docs), Build Notes (auto-generated via BuildMark), and a note that CHANGELOG.md is absent as changes are captured in auto-generated build notes

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[Malcolmnixon]

Don't put the "to be added" stuff in - this document should act as if the requirements exist.

[Copilot]

Done in 6ea5441 — removed the "to be added" qualifier and added requirements.yaml to the Key Files section as an already-present file.

[Malcolmnixon]

Don't put the "once introduced" in.

[Copilot]

Removed in 6ea5441.

[Malcolmnixon]

The tests are testing workflows, so I think the convention should be changed to WorkflowName_Scenario_ExpectedBehavior.

[Copilot]

Updated in 6ea5441 — changed to WorkflowName_Scenario_ExpectedBehavior in both AGENTS.md and test-developer.md (including the example method name and naming convention description).

[Malcolmnixon]

This section seems different from the template in https://github.com/demaconsulting/TemplateDotNetLibrary/blob/main/AGENTS.md

You're not mentioning the user guide.
Also add the requirements.yaml -> autogenerated docs (even though its not there yet)
Also add the Build Notes
Also mention there is no CHANGELOG.md as changes are captured in the auto-generated build notes.

[Copilot]

Updated in 6ea5441 — the Documentation section now lists: User Guide (docs/guide/guide.md), README, CONTRIBUTING, SECURITY, CODE_OF_CONDUCT, Requirements (requirements.yaml → auto-generated docs), Build Notes (auto-generated via BuildMark), and a note that CHANGELOG.md is absent as changes are in the auto-generated build notes.