server settings keyed (352 -> 267)

ServerSettings reaches zero: OCR, STT, TTS, SMTP, maintenance and the AI harnesses.

Two more hand-rolled plurals became real plural entries -- maintenance said
"commit" with a ternary on length === 1, and both read correctly at 0, 1 and 2 in
both locales now. The three Cancel buttons in AIHarnessesSection take ui.button.cancel
rather than adding a fourth app-level copy of the word, which is what phase 1 put it
there for.

Scanner: a single token carrying digits and punctuation is a name, not a sentence --
the OCR placeholder is the example model file Qwen2.5-VL-7B-Instruct-q4_k_m.gguf.
Prose has spaces, and requiring whitespace to be absent is what keeps this from
eating real one-word labels. Verified the delta is exactly that one string.

Note for the owner: another session has src/servers/api/sub-agents/router.ts in
flight with three type errors. Untouched by me and excluded from my gate; the full
tree will not typecheck clean until they land it.

scripts/i18n/scan-hardcoded.ts

@@ -85,6 +85,10 @@ function isHuman(value: string | undefined): value is string {
   // pattern because it starts with a capital and interpolates; excluded here because an auth scheme
   // followed by a credential is never something a person reads.
   if (/^(Bearer|Basic|Token|Digest)\s/.test(s)) return false;
+  // A single token carrying digits AND punctuation is a name, not a sentence — the OCR section's
+  // placeholder is the example model file `Qwen2.5-VL-7B-Instruct-q4_k_m.gguf`. Prose has spaces; the
+  // whitespace test is what keeps this from eating real one-word labels, which never look like this.
+  if (!/\s/.test(s) && /\d/.test(s) && /[-_.]/.test(s)) return false;
   // Tailwind, reached via a `description:`/`label:` key in a classNames object — e.g. sonner's
   // `description: 'group-[.toast]:text-muted-foreground'`.
   //