[WIP] Improve clarity of init output in Agentic Workflows

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Make the "init" output more crisp, clean, clearer. See this:

@pelikhan ➜ /workspaces/agentics (main) $ gh aw init

ℹ Welcome to GitHub Agentic Workflows setup!


ℹ Configuring repository for copilot engine...


ℹ Checking required secrets for the selected engine...

✓ Found the following secrets in your environment:
ℹ   ✓ COPILOT_GITHUB_TOKEN

ℹ Skipped configuring secrets


⚠ The following required secrets are not available in your environment:

ℹ   ✗ GH_AW_GITHUB_TOKEN
ℹ     When needed: Cross-repo Project Ops / remote GitHub tools
ℹ     Description: Fine-grained or classic PAT with contents/issues/pull-requests read+write on the repos gh-aw will touch.
⚡     gh aw secrets set GH_AW_GITHUB_TOKEN --owner githubnext --repo agentics

ℹ   ✗ GH_AW_AGENT_TOKEN
ℹ     When needed: Assigning agents/bots to issues or pull requests
ℹ     Description: PAT for agent assignment with issues and pull-requests write on the repos where agents act.
⚡     gh aw secrets set GH_AW_AGENT_TOKEN --owner githubnext --repo agentics

ℹ   ✗ GH_AW_GITHUB_MCP_SERVER_TOKEN
ℹ     When needed: Isolating MCP server permissions (advanced, optional)
ℹ     Description: Optional read-mostly token for the GitHub MCP server when you want different scopes than GH_AW_GITHUB_TOKEN.
⚡     gh aw secrets set GH_AW_GITHUB_MCP_SERVER_TOKEN --owner githubnext --repo agentics


✓ Repository initialized for agentic workflows!

ℹ GitHub Copilot Agent MCP integration configured

ℹ To create a workflow, launch Copilot CLI: npx @github/copilot
ℹ Then type /agent and select agentic-workflows

ℹ Or add workflows from the catalog: gh aw add <workflow-name>

Remove extra "ℹ " from info console output.

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