Revert Claude Code plugin PR #2013

[flanakin]

Summary

Reverts #2013 ("Add Claude Code plugin for FinOps hubs and Azure Cost Management") which was merged without full review. See PR #2013 review comments for details.

Key issues:

• CLAUDE.md was replaced with Copilot instructions content instead of the original Claude Code guidance (build commands, architecture, dev patterns)
• Packaging would be broken — Package-Toolkit.ps1 doesn't follow symlinks
• Commands reference nonexistent paths and lack guardrails for token consumption
• Versioning and repo structure issues — marketplace.json at root, plugin version mismatch

The plugin work is valuable and should be re-submitted after addressing review feedback.

Test plan

• Verify CLAUDE.md is restored to original content
• Verify no build/test regressions
• ❎ Log not needed

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR reverts PR #2013 which added a Claude Code plugin for the FinOps toolkit. The revert is being performed because post-merge review identified several issues including: replacement of CLAUDE.md with a symlink, improper file placement, symlink packaging concerns, lack of guardrails in autonomous commands, unverified content, and changelog version inconsistencies. The revert removes approximately 5,000+ lines of plugin-related code including agents, skills, commands, and reference documentation.

Changes:

• Restores original CLAUDE.md with 182 lines of build commands, architecture docs, and development patterns
• Removes entire Claude Code plugin directory and all associated files (agents, skills, commands, references)
• Removes marketplace.json and AGENTS.md symlink from repository root
• Removes Claude Code plugin v1.0 changelog entry from docs-mslearn/toolkit/changelog.md

Reviewed changes

Copilot reviewed 43 out of 44 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
CLAUDE.md	Restored from symlink to full 182-line original content with build commands and architecture docs
AGENTS.md	Removed symlink to copilot-instructions.md
.claude-plugin/marketplace.json	Removed marketplace configuration file
src/templates/claude-plugin/*	Removed entire plugin directory including skills, agents, commands, and references
src/queries/catalog/costs-enriched-base.kql	Updated documentation URL (contains hardcoded branch reference - see comment)
src/queries/catalog/quarterly-cost-by-resource-group.kql	Updated query description comments
src/queries/finops-hub-database-guide.md	Changed reference from specific catalog query to generic "CostsPlus Query"
docs-mslearn/toolkit/changelog.md	Removed Claude Code plugin v1.0 changelog entry