Add decl page contents from offsite discussion

[deniseli]

Notes: https://docs.google.com/document/d/1lVFFGy_2OFWSumnIZOU9qrKMV2VBI7gzcwhPlEmOSTw/edit?tab=t.0

Immediate tasks (i.e. this list excludes anything that blocked on future decisions/features/whathaveyou)

• set config/secret in dev mode only (nail down exact cases where this is or isn't safe)
• view config/secret in dev mode only
• show database dsn in dev mode only
• show database schema/structure, but not contents
• review and implement other database ideas from notes that are already feasible to add.
• add language-specific mappings (with a toggle for language selection) to typealias
• enums: add link to docs and show how to use it / import it. Give the import for the language of your choice. Pending feasibility.
• verb page: timebox codemirror additions to 1 week. Lots of ideas but this is all pending feasibility. At the very least, we can add a form for setting headers/queryparams/reqparams and a copy button to the codemirror component. Should show cron schedule for cron verbs.
• topics: publish, look at events on it, cursor, where actual subscribers/cursors are, link to subscription type. Being able to reset cursors, nuke/reset topic and all subscribers. After switch to kafka, export connection string would be good
• subs: show same thing as topics, but have toggle for either only showing this subscription’s rows, vs showing all but this one is highlighted different color.
  • Verb page should also show what it’s subscribed to. Discourage calling directly.
• ability to write/show/run queries for topics/subs and databases would be useful.