chore: resolve open dependabot security alerts

[jonathannorris]

Summary

• Resolved all 8 open Dependabot security alerts by bumping markdown-link-check to ^3.14.2 and markdownlint-cli to ^0.48.0; lodash.template required an npm override since markdown-toc → remarkable@1.7.x → autolinker@0.15.x → gulp-header is a frozen dep chain
• markdownlint-cli@0.48.0 introduced MD060 (table column style); fixed pre-existing violations in appendix-d-observability.md and types.md via prettier

[gemini-code-assist]

Code Review

This pull request introduces a series of dependency overrides in package.json to enforce specific versions for packages such as basic-ftp, minimatch, and glob, while also updating package-lock.json with corresponding version bumps and added license metadata. A critical issue was identified in the overrides section where lodash.template is set to a non-existent version (^4.18.0), which will cause installation failures; it is recommended to override the base lodash package to ^4.17.21 instead.

[jonathannorris]

markdownlint-cli@0.48.0 introduced MD060 (table column style), which enforces consistent pipe alignment in markdown tables. Fixed the pre-existing violations via prettier — if we don't want this rule we can add MD060: false to .markdownlint.yml.