Cdp layer (#62)

* docs for CDP layer plan

* phase 1.1 workstream A

* finished up Phase 1

* phase 2 - initial working version

* fix edge cases for CDP action interactions

* phase 2 polish

* pahse 3 docs plan

* initial working version of CDP first frames

* auto attach frames

* finish phase 3 with some leftover code

* optimized dom settling and CDP session management

* more optimizations

* remove planning docs

* make geta11ydom retry if couldn't get AX TRee

* fix scroll, removed feature flags

* update .gitignore

* simplify CDP opt out

* clean up debug logging

* update readme

* remove unused deps

* remove more logging

* fix

* fix

* fix oopif

* fix frame mapping, remove legacy code

* fix screenshots

* tighten the prompt some more

* update scripts

* add more comments and DOM pierce: false for OOPIF

* fix resolve

* parallelize iframe fetching

* captureOOPIF on every dom refresh

* cache CDP OOPIF sessions

* cache CDP OOPIF frames, fix prompt, use tools for claude

* ignore ads. fix prompt. make agent better when it's long task

* add errors from schema, so LLM learns from them

* update docs