[Ports]: Backport client side changes for 1.61

[microsoft-playwright-automation]

Please backport client side changes:

• chore(python): formdata path type playwright#40693
• fix(trace-viewer): strip event handlers and neutralize IFRAME srcdoc/sandbox in snapshot renderer playwright#40676
• feat(electron): move Electron API to a separate package playwright#40184
• fix(tools): validate user-provided regex patterns in MCP tools playwright#40752
• chore(protocol): replace EventTarget interface with __waitInfo__ message playwright#40718
• fix(trace-viewer): neutralize object and embed tags in snapshot renderer playwright#40761
• fix(utils): fix polynomial backtracking in ansiRegex playwright#40762
• chore(trace): track snapshot targets via generation counter playwright#40766
• chore: remove missingDocs playwright#40777
• chore(page): split protocol close into close and runBeforeUnload playwright#40780
• fix(cli): persist traces when CLI attaches to existing CDP browser playwright#40810
• chore(docs): use * for object type alias markers playwright#40821
• chore(dispatcher): move potentiallyClosesScope into protocol metainfo playwright#40833
• chore(expect): unify aria-snapshot baseline-generation paths playwright#40835
• feat(page): add localStorage / sessionStorage API playwright#40843
• feat(test): allow testIdAttribute to be a comma-separated list of names playwright#40844
• chore(protocol): auto-serialize SerializedValue in validators playwright#40798
• chore(protocol): auto-serialize SerializedValue in validators playwright#40798
• feat(agents): add Codex --loop=codex generator playwright#40817
• feat(credentials): add context.credentials WebAuthn virtual authenticator playwright#40849
• feat(keyboard): add array overload to pressSequentially playwright#40748
• feat(test): support per-project webServer configuration playwright#40869
• feat(screencast): animate a mouse cursor between action points playwright#40916