feat: move workflow prompts to .github/prompts/ as VS Code-compatible prompt files

[Copilot]

Two scheduled workflows (check-models.yml, sync-toolnames.yml) use the Copilot CLI with prompts stored under .github/workflows/prompts/. These prompts were inaccessible from VS Code Chat.

Changes

• Moved prompt content to .github/prompts/ as VS Code-compatible prompt files:
  • sync-models.prompt.md — exact content from sync-models-prompt.md, with VS Code agent-mode frontmatter added
  • sync-toolnames.prompt.md — exact content from sync-toolnames-prompt.md, with VS Code agent-mode frontmatter added
• Updated check-models.yml to reference .github/prompts/sync-models.prompt.md in both the paths: trigger and the runtime cat command
• Updated sync-toolnames.yml to reference .github/prompts/sync-toolnames.prompt.md in both the paths: trigger and the runtime cat command

Both files use the VS Code prompt frontmatter format (mode: 'agent'), making them available as #sync-models and #sync-toolnames in VS Code Copilot Chat while remaining the single source of truth used by the scheduled workflows.

Original prompt

We hebben verschillende workflow's die de Copilot CLI gebruiken om een prompt af te trappen op een schema. Zoek deze prompt op en converteer deze naar een .prompt.md file in de .github folder zodat we kunnen hergebruiken vanuit de visual studio code UI.

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[rajbos]

@copilot I wanted to have the prompts from the .github/workflows/prompts directory as prompt file, instead of making new ones. Implement the existing prompts.

[Copilot]

@copilot I wanted to have the prompts from the .github/workflows/prompts directory as prompt file, instead of making new ones. Implement the existing prompts.

Updated in dd35205. Both .prompt.md files now use the exact content from .github/workflows/prompts/sync-models-prompt.md and .github/workflows/prompts/sync-toolnames-prompt.md respectively, with only the VS Code frontmatter (mode, description, tools) added at the top.

[rajbos]

@copilot the workflows that called the old prompt files to use them, now also need their paths updated to pick up the new location of the files ofc. Find all workflows that reference them and update them.

[Copilot]

@copilot the workflows that called the old prompt files to use them, now also need their paths updated to pick up the new location of the files ofc. Find all workflows that reference...

Done in a3736b6. Both check-models.yml and sync-toolnames.yml now reference .github/prompts/sync-models.prompt.md and .github/prompts/sync-toolnames.prompt.md respectively — in both the paths: trigger filter and the cat command that reads the prompt at runtime.