docs(submission): corrected quirks - naming rules, input CRUD works, feed creation broken Live verification showed input CRUD works when names follow [A-Za-z0-9_] (max 30, no hyphens); modify_input is rejected for fresh inputs; named streaming data feed creation/modification returns an empty HTTP 500 regardless of body.
docs(submission): Submission API - inputs, streaming feeds, config Documents input metrics and CRUD, the named streaming feed registry, messaging config, S&F chat toggle with state-restoring pattern, DB counters - plus the broken create-input/data-feed server bug.