feature/fix: css scriptlet, fix js scriptlet

[joshrmcdaniel]

• Injected uBlock scriptlets now actually run
  • Even after the 0.7.0 scriptlet repair, every injected ##+js(...) scriptlet was a silent no-op. adblock-rust emits scriptlet bodies that reference an ambient scriptletGlobals object (uBlock Origin supplies it in its own injector; adblock-rust leaves it to the embedder), so the first internal call threw ReferenceError: scriptletGlobals is not defined, which each scriptlet's own try/catch swallowed. Privaxy now defines scriptletGlobals at the top of the injected payload, so abort-current-script, prevent-addEventListener, abort-on-property-read, set-cookie, etc. take effect.
• Procedural cosmetic filtering
  • Non-CSS procedural filters are no longer dropped (previously only filters reducible to plain CSS were applied). :has-text, :matches-css/-before/-after, :matches-attr, :matches-path, :min-text-length, :upward, :xpath, and the :remove()/:style()/remove-attr/remove-class actions are now evaluated in-page by an injected shim.

[zeropath-ai]

✅ No security or compliance issues detected. Reviewed everything up to 6cf1a44.

Security Overview

• 🔎 Scanned files: 13 changed file(s)
• 🔗 Scan Link: https://zeropath.com/app/repositories/faea5099-3f6a-45e4-b253-e8031a570782?scanId=f07a0987-bca5-4f22-ba60-628e459e8b53&codeScanTypes=PrScan&tab=issues

Detected Code Changes

Change Type	Relevant files
Configuration changes	► CHANGELOG.md     Add v0.7.1 section     Add v0.7.0 section ► privaxy/src/server/configuration/mod.rs     Add DebugConfig struct     Add SerializeError to ConfigurationError     Add debug field to Configuration     Implement atomic save for configuration file
Enhancement	► privaxy/src/resources/procedural_cosmetics.js     Implement in-page procedural cosmetic filtering shim ► privaxy/src/server/blocker.rs     Forward non-CSS procedural filters to the shim ► privaxy/src/server/lib.rs     Pass scriptlet_debug_logging to privaxy_backend ► privaxy/src/server/proxy/html_rewriter.rs     Inject procedural cosmetic shim into head     Implement scriptlet_debug_logging logic ► privaxy/src/server/proxy/mitm.rs     Pass scriptlet_debug_logging to serve_mitm_session ► privaxy/src/server/proxy/serve.rs     Resolve and inject procedural cosmetic filters     Pass scriptlet_debug_logging to serve ► privaxy/src/server/web_gui/settings/debug.rs     Implement debug settings API endpoints ► privaxy/src/server/web_gui/settings/mod.rs     Add debug settings route ► web_frontend/src/debug.rs     Implement DebugSettingsPage component ► web_frontend/src/main.rs     Import debug component ► web_frontend/src/settings.rs     Add Debug route and link
Bug Fix	► CHANGELOG.md     Fix cosmetic "modified responses" statistic undercount     Injected uBlock scriptlets now actually run ► privaxy/src/server/proxy/html_rewriter.rs     Fix scriptlet debugging to log errors     Ensure injected scriptlets have scriptletGlobals defined
Refactor	► privaxy/src/server/blocker.rs     Refactor procedural action handling ► privaxy/src/server/proxy/html_rewriter.rs     Consolidate head script injection logic ► privaxy/src/server/proxy/serve.rs     Combine scriptlet and procedural filter injection
Other	► CHANGELOG.md     Add procedural cosmetic filtering to changelog