docs: refresh GitHub Copilot workshop content

[EfeSenerr]

Update the workshop entry points, lab guidance, model guidance, and maintenance docs for the current GitHub Copilot experience.

Purpose

• ...

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

[Copilot]

Pull request overview

Refreshes the GitHub Copilot workshop documentation and repo entry points to better match the current Copilot experience (labs, agentic workflows, and MCP), while cleaning up outdated/placeholder content across the workshop site and lab folders.

Changes:

• Reworks workshop docs to emphasize durable guidance (Auto model selection, review/validation, agentic workflows, MCP) and reduces hard-coded/product-volatile details.
• Adds/updates lab-level README pointers so the labs/ folders clearly defer to the published docs/ instructions.
• Updates MkDocs metadata/navigation and modernizes the Pages deployment workflow action versions.

Reviewed changes

Copilot reviewed 28 out of 29 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
README.md	Replaces the repo landing page with a workshop-focused overview, prerequisites, and fork workflow.
mkdocs.yml	Updates site metadata and navigation labels for refreshed workshop structure.
labs/python/starwarsapi/README.md	Adds a pointer README to the published Star Wars Python workshop page.
labs/python/rock_paper_scissors/tests/test_game.py	Updates the inline comment describing how tests were generated.
labs/python/rock_paper_scissors/README.md	Replaces placeholder README with a pointer to the published Rock Paper Scissors page.
labs/python/rock_paper_scissors/README copy.md	Removes the duplicated placeholder README content.
labs/python/README.md	Adds an index README mapping Python lab folders to published instructions.
labs/java/starwarsapi/instructions.md	Fixes branding/capitalization and refreshes Copilot prompt guidance in the Java lab instructions.
labs/html/gallery/instructions.md	Refreshes branding and updates wording around agents/vision input and prompts.
docs/workshop-overview.md	Rewrites overview to a menu-style structure with a curated lab catalog.
docs/train-the-trainer.md	Replaces detailed agenda script with a trainer checklist, flow, and stable teaching tips.
docs/rag-extension-lab.md	Marks the RAG extension lab as a draft and adds completion/validation criteria.
docs/model-comparison.md	Replaces static model table with task-based guidance and links to official model docs.
docs/index.md	Refreshes the docs landing page with updated Copilot concepts and workshop navigation.
docs/hands-on/starwars-api.md	Applies copy/format updates and refreshes Copilot workflow wording for the Java lab.
docs/hands-on/starwars-api-python.md	Updates Python lab narrative to distinguish Ask-style vs agentic workflows and modernizes prompts.
docs/hands-on/rock_paper_scissors.md	Updates prompts and Copilot workflow wording; improves durability of instructions.
docs/hands-on/other-labs.md	Replaces internal lab table with external lab links + selection guidance and trainer tips.
docs/hands-on/mcp-server-starter.md	Updates formatting and embedded snippets for the MCP server quickstart-based lab.
docs/hands-on/mcp-fiar.md	Minor copy/format refresh for the FIAR MCP lab introduction.
docs/hands-on/index.md	Replaces long narrative with a concise lab matrix and trainer guidance.
docs/hands-on/html-gallery.md	Refreshes wording around Ask vs agentic workflows and vision-input bonus challenge steps.
docs/hands-on/gh-gallery-mcp.md	Updates agent/model guidance and modernizes wording around GitHub.com/MCP usage.
docs/future-roadmap.md	Replaces speculative roadmap content with a practical “keep current” maintenance checklist.
docs/customer-stories/customer-story-2.md	Minor formatting cleanup (duration/difficulty).
docs/customer-stories/customer-story-1.md	Minor copy/format cleanup and removes hard-coded model naming.
CONTRIBUTING.md	Replaces placeholder repository links/titles with the real Azure-Samples repo targets.
CHANGELOG.md	Replaces placeholder template with a workshop-oriented changelog note.
.github/workflows/deploy-mkdocs.yml	Updates checkout/setup-python action versions for MkDocs deployment.

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