[autofix] reddit/hot: EMPTY_RESULT

Summary

OpenCLI autofix repaired this adapter locally, and the retry passed.

Adapter

• Site: reddit
• Command: hot
• OpenCLI version: 1.8.7

Original failure

• Error code: EMPTY_RESULT

opencli reddit hot --limit 3  ->  []

The command exits 0 and returns an empty array. No error is raised, so --trace retain-on-failure produces no artifact at all: the silent empty result bypasses the entire diagnostic toolchain.

Root cause

Reddit now returns an empty Listing (dist: 0) for the global frontpage JSON endpoints. Verified by loading each endpoint directly in a browser tab and reading the payload:

clis/reddit/hot.js used /hot.json for the frontpage branch, so the frontpage path silently returned [] while the --subreddit path kept working.

Local fix summary

Frontpage path changed from '/hot.json' to '/r/popular/hot.json', and explicit
guards added: non-ok HTTP, non-Listing payloads, and empty listings now throw
instead of returning [] (the empty case names dist= and points at
--subreddit/popular).

Verification

• opencli reddit hot --limit 3 -> real posts (rank/title/score/comments/media)
• opencli reddit hot --subreddit LocalLLaMA --limit 2 -> still OK
• opencli validate reddit -> PASS (21 commands, 0 errors, 0 warnings)
• node scripts/check-silent-column-drop.mjs -> no new violations

Issue filed by OpenCLI autofix after a verified local repair.