Fix Scramjet proxy, navigation buttons, and optimize service worker loading

[Copilot]

Scramjet proxy wasn't working because settings were being reset to defaults on every page load. Navigation buttons (forward/back/reload) weren't functioning on proxied content. Service worker was slow due to redundant config loading on every fetch.

Changes

Settings Persistence (src/utils/settings.ts)

• proxy(), searchEngine(), adBlock() now only set defaults when no value exists in localStorage
• Previously always overwrote user preferences with defaults when called without arguments

// Before: Always overwrites
proxy(prox?: "uv" | "sj") {
    this.#storageManager.setVal("proxy", prox || "uv");
}

// After: Preserves existing value
proxy(prox?: "uv" | "sj") {
    if (prox) {
        this.#storageManager.setVal("proxy", prox);
    } else if (!this.#storageManager.getVal("proxy")) {
        this.#storageManager.setVal("proxy", "uv");
    }
}

Navigation Buttons (src/pages/index.astro)

• Use flag-based init to prevent duplicate listeners
• Get fresh contentWindow reference on each click (was stale)
• Added fallback reload via iframe src reset for cross-origin scenarios

Service Worker Performance (public/sw.js)

• Cache Scramjet config loading with promise pattern (was loading on every fetch)
• Pre-load config during install/activate events
• Only check CAPTCHA/heavy-cookie handling for proxied requests

let sjConfigLoaded = false;
let sjConfigPromise = null;

async function ensureSjConfigLoaded() {
    if (sjConfigLoaded) return Promise.resolve();
    if (sjConfigPromise) return sjConfigPromise;
    sjConfigPromise = sj.loadConfig().then(() => { sjConfigLoaded = true; });
    return sjConfigPromise;
}

Scramjet Fallback (src/utils/proxy.ts)

• Added null check for ScramjetController, falls back to UV if not ready
• Added default search engine template if none provided

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• example.com
  • Triggering command: /usr/local/bin/node node server/index.js (dns block)
• telemetry.astro.build
  • Triggering command: /usr/local/bin/node node /home/REDACTED/work/Radius/Radius/node_modules/.bin/astro build (dns block)
• www.google.com
  • Triggering command: /usr/local/bin/node node server/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

fix scramjet not working, maek the forward, back and reload arrows work on the proxied content, and make the proxy WAY faster, as loading takes a vary long time

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