[geyutu6755]

Special-audit follow-up to v0.7.0 (audit: resource dedup / fetch-XHR channels / form-button safety).

Fix

• SPAs cancel in-flight API requests constantly (stale queries, route changes, timeouts). A cancelled fetch/XHR (net::ERR_ABORTED) is application behaviour, not a page fault — no longer reported as resource-load-failure.
• Real network failures on fetch/XHR (connection refused / DNS / reset / destroyed socket) are STILL reported; aborted subresources (img/script) keep coverage.

Evidence

• New regression test pair (TDD): client abort → 0 findings; socket-destroyed fetch → finding present
• Real audit site: 9 → 8 findings, all planted scenarios still detected (7 verified + 1 suspected)
• Full suite 186/186; npm audit 0
• Also: corrected issues.md verified/suspected wording; CI Chromium install retries once on CDN drops