Feature ETP-2124: Split Warehouse Analysis Tools

[mapenglishservices]

Summary

• Split the single Warehouse Management Analysis Tools page into 7 individual sub-pages (Pareto Product Report, Material Transaction Report, Stock Report, Stock History, Valued Stock Report, Product Movements Report, Product Operations)
• Improved the Pareto Product Report documentation with better structure, tables, actionable tips, and clarity for non-technical users
• Updated mkdocs.yml English nav to reflect the new sub-page structure
• Replaced old screenshot with a new one from the live demo

Test plan

• Verify mkdocs build --strict passes
• Confirm all 7 sub-pages render correctly in both nav and content
• Check that the Pareto Product Report screenshot displays properly
• Verify internal links (setup.md, valued-stock-report.md) resolve correctly

🤖 Generated with Claude Code

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One or more commit messages do not meet the required standards. Please correct them.

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