perf: reduce fetch timeout to 12s and retries to 2

Stress testing showed 33% of proxies are dead, causing 30s+ timeouts
per request with 3 retries (worst case 94s). Reducing timeout from 30s
to 12s and retries from 3 to 2 brings worst case to 25s. Combined with
disabling 509 dead proxies from the pool, this should significantly
improve response times under load.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -3,6 +3,14 @@
 All notable changes to webclaw are documented here.
 Format follows [Keep a Changelog](https://keepachangelog.com/).
 
+## [0.3.10] — 2026-04-10
+
+### Changed
+- **Fetch timeout reduced from 30s to 12s**: prevents cascading slowdowns when proxies are unresponsive. Worst-case per-URL drops from ~94s to ~25s.
+- **Retry attempts reduced from 3 to 2**: combined with shorter timeout, total worst-case is 12s + 1s delay + 12s = 25s instead of 30s + 1s + 30s + 3s + 30s = 94s.
+
+---
+
 ## [0.3.9] — 2026-04-04
 
 ### Fixed

Cargo.toml

@@ -3,7 +3,7 @@ resolver = "2"
 members = ["crates/*"]
 
 [workspace.package]
-version = "0.3.9"
+version = "0.3.10"
 edition = "2024"
 license = "AGPL-3.0"
 repository = "https://github.com/0xMassi/webclaw"

crates/webclaw-fetch/src/client.rs

@@ -44,7 +44,7 @@ impl Default for FetchConfig {
             browser: BrowserProfile::Chrome,
             proxy: None,
             proxy_pool: Vec::new(),
-            timeout: Duration::from_secs(30),
+            timeout: Duration::from_secs(12),
             follow_redirects: true,
             max_redirects: 10,
             headers: HashMap::from([("Accept-Language".to_string(), "en-US,en;q=0.9".to_string())]),
@@ -207,13 +207,12 @@ impl FetchClient {
     /// Fetch a URL and return the raw HTML + response metadata.
     ///
     /// Automatically retries on transient failures (network errors, 5xx, 429)
-    /// with exponential backoff: 0s, 1s, 3s (3 attempts total).
+    /// with exponential backoff: 0s, 1s (2 attempts total).
     #[instrument(skip(self), fields(url = %url))]
     pub async fn fetch(&self, url: &str) -> Result<FetchResult, FetchError> {
         let delays = [
             Duration::ZERO,
             Duration::from_secs(1),
-            Duration::from_secs(3),
         ];
         let mut last_err = None;