API packaging - reference

[cloudjumpercat]

TODO:

• Add API Packaging information to a new reference page (slug: /dev-portal/api-packaging/) Note: slug will need to be changed from feat(dev-portal): API composition and packaging #2664. (pull content from the PRD and eng brief)
• Make ACE content includes https://developer.konghq.com/plugins/ace/

Product brief: https://docs.google.com/document/d/1Hj8qyH5lfST8bsFDVqfucNcCERb0JSfok1tsBVqoM3s/edit?tab=t.0#heading=h.pcd2mpbvjym1
Eng brief: https://docs.google.com/document/d/1uoWpJSCBPJLpyQjG9qhvrROJ_tfpZca3JzxbJYnusGE/edit?tab=t.hhdxk9ouamka
AHA: https://konghq.aha.io/epics/KP-E-377
Info on API package documentation: https://kongstrong.slack.com/archives/C02D0BPQC85/p1755112172349699

Release date:
definitely this month. Targeting January 23 or earlier.