fix: ask reddit.com with the firefox fingerprint first - #56
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Reddit's edge answers the chrome fingerprint with a 403 or a 429 while letting firefox through, and it allows anonymous readers about ten requests a minute per address, so the wasted chrome attempt on every read was costing a real share of that budget. identityOrder() picks the order per host: firefox then chrome for reddit.com and its subdomains, chrome then firefox everywhere else, with the same downgrade chain and plain fetch fallback as before. Refs #52.
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Follow-up to #53 (refs #52). While probing the feeds, the chrome fingerprint drew 403 and 429 from reddit.com where firefox and plain curl got 200. viaImpers already retried with firefox on a blocked first attempt, but on a site that allows anonymous readers about ten requests a minute per address, the wasted chrome attempt was a real share of the budget on every read.
identityOrder(target)insrc/fetch.jsreturns the identity order for a URL: firefox then chrome for reddit.com and its subdomains, chrome then firefox everywhere else. The downgrade chain (blocked or refused first identity, then the second, then plain fetch) is unchanged.notreddit.comandreddit.com.examplekept on the default), and a refused firefox fingerprint on reddit.com still falling back to chrome.Live check:
oc reddit sub ClaudeAI -vreports HTTP 200 via impers:firefox on the first attempt, 478 tokens.npm test: 217 passing.