Tidy dead code

src/cli/index.ts

@@ -94,10 +94,8 @@ export async function main(rawArgv: string[]): Promise<number> {
     return await cmd.run(argv, ctx);
   } catch (err) {
     printError(err, json);
-    // Any error exits 1. We do not overload the exit code to signal error kind:
-    // the capability-gated commands catch internally and return 1 already, so a
-    // CAPABILITY_UNAVAILABLE→2 mapping here never fired. Machine consumers read
-    // the precise `error.code` from --json output instead.
+    // Any error exits 1 — the exit code doesn't encode error kind. Machine
+    // consumers read the precise `error.code` from the --json output instead.
     return 1;
   }
 }

src/core/errors.ts

@@ -98,19 +98,3 @@ export function quotaExhausted(
     suggested_commands: claimUrl ? [] : ["zenrows usage"],
   });
 }
-
-/** Build the canonical "this capability is not configured" error. */
-export function capabilityUnavailable(
-  capabilityLabel: string,
-  command: string,
-  suggested: string[],
-): ToolkitError {
-  return new ToolkitError({
-    code: "CAPABILITY_UNAVAILABLE",
-    message: `${capabilityLabel} is not configured for this backend yet.`,
-    likely_cause: `The cloud primitive behind \`${command}\` is not enabled for this account or has not shipped.`,
-    next_action:
-      "Use a local spec / validation path, or escalate to a confirmed primitive (Protected Fetch / Extract).",
-    suggested_commands: suggested,
-  });
-}