@claude-bot-andresmgsl's outstanding item from the prior round, which my last
reply passed over in silence. That silence read as an oversight because it was
one.
`--port` on the create path was still bare `Number()`, so `--port abc` became
NaN, reached `server.listen(NaN)` in github-app.ts, and died as an uncaught
ERR_SOCKET_BAD_PORT stack trace — after `detectOwnerType` and the org-admin
preflight had already gone out. It is the same missing argv validation this
round fixed for the two ids, in a command whose stated rule is reject before
any write or network call.
Nothing is destroyed when it fails: no App and no client secret exist at that
point. So this is not about damage, it is about the command honouring its own
rule, and about failing with a sentence rather than a stack trace.
Range-checked as well as digits-only: `--port 99999` passes every test the ids
need and still cannot be listened on.
Scope, stated rather than assumed: `server add --port` (src/cli.ts:2430) has
the identical shape but predates this branch and is not in its diff. It is a
real instance of the same bug and belongs in its own change, not smuggled into
this one.
Four CLI cases — non-numeric, out-of-range, zero, decimal — asserting exit 2,
no stub hits and an unchanged state dir, driven through `create` because that
is the path that reads the flag. Verified by mutation: disabling the check
fails all four.