chore(mule-development): add generate-connectivity-knowledge skill, bump to 1.3.0

[matiasjlopez]

Summary

• Add generate-connectivity-knowledge — a new 14-step skill that produces connectivity knowledge for a SaaS API when no dedicated Mule connector exists. Researches the API from user-defined use cases and documentation, produces an OpenAPI 3.0 spec, validates every operation against the live service with auto-fix, and writes a self-contained connectivity-schema/<apiName>/ folder (api-reference.md + <apiName>.yaml + config.properties).
• The output feeds the HTTP-fallback branch of build-mule-integration (Step 3a) so HTTP-Connector flows inherit the same auth, pagination, and entity awareness a dedicated connector would carry.
• Bump @salesforce/mulesoft-vibes-skills from 1.2.0 → 1.3.0 (minor bump for a new skill, per semver) and add the corresponding CHANGELOG.md entry.

What's in the skill

File	Purpose
generate-connectivity-knowledge/SKILL.md	The 14-step workflow: research → OpenAPI 3.0 generation → live validation with auto-fix.
generate-connectivity-knowledge/references/examples.md	Worked examples for the most common patterns the agent encounters during research and validation.

The skill includes MANDATORY credential-security rules: never read, echo, log, or reason about credential values from config.properties. Verification is via grep -c '^KEY=' and injection via inline shell substitution; the values never enter the agent's transcript.

Test plan

• make pre-commit-hook — validate-descriptions, validate-mcp-server, validate-xorigin, validate-jtbd, validate-skills PASS
• make test-portal — pytest + jest PASS
• make validate-all-governed — PASS (run via pre-push hook on this branch)
• python3 scripts/build/validate_jtbd.py skills/mule-development/generate-connectivity-knowledge/SKILL.md . — PASSED

Notes for reviewers

• Supersedes chore(mule-development): add generate-connectivity-knowledge skill, bump to 1.0.5 #111. This PR was re-opened from a fork because the author's direct push access to mulesoft/mulesoft-dx is currently read-only. Content is identical to chore(mule-development): add generate-connectivity-knowledge skill, bump to 1.0.5 #111's intent, with the two review points from chore(mule-development): add generate-connectivity-knowledge skill, bump to 1.0.5 #111 addressed:
  • Version: corrected from the erroneous 1.0.5 (a downgrade from master's 1.2.0) to a proper minor bump 1.3.0, with the CHANGELOG entry retitled accordingly. Rebased onto current master, so master's */templates/** files entry and the 1.1.1 / 1.1.0 changelog entries are preserved.
  • Signed commits: both commits are now Verified — re-authored under matiasjavier.lopez@mulesoft.com and SSH-signed (no longer the EMU identity).
• Mergeable with no conflicts (branch is a direct descendant of current master).

Out of scope

• Wiring build-mule-integration Step 3a to invoke the new skill — ships in a follow-up PR.

GUS

@W-22567718