Bug: Misc. typos in docs and source code strings

[LyalinDotCom]

What happened?

I reviewed the codebase and found some possible spelling errors

File	Line	Word	Correction	Context
packages/cli/src/ui/types.ts	22	Attemtping	Attempting	String/Comment
packages/a2a-server/src/agent/task.ts	464	necesssary	necessary	String/Comment
packages/core/src/utils/filesearch/fileSearch.ts	185	occurence	occurrence	String/Comment
packages/a2a-server/development-extension-rfc.md	156	represeting	representing	Documentation
packages/a2a-server/development-extension-rfc.md	200	Ouput	Output	Documentation
docs/get-started/authentication.md	249	interative	interactive	Documentation
packages/core/src/telemetry/semantic.ts	112	explictly	explicitly	String/Comment
packages/core/src/test-utils/mock-tool.ts	185	overrided	overridden	String/Comment
packages/core/src/test-utils/config.ts	24	paramters	parameters	String/Comment
packages/cli/src/ui/components/messages/ToolMessage.tsx	196	exceedsthe	exceeds the	String/Comment
packages/core/src/utils/schemaValidator.ts	33	confroms	conforms	String/Comment
packages/cli/src/ui/components/InputPrompt.tsx	710	completey	completely	String/Comment
packages/cli/src/test-utils/mockCommandContext.ts	91	recursivlty	recursively	String/Comment
packages/core/src/agents/codebase-investigator.ts	99	chagnes	changes	String/Comment
packages/cli/src/ui/hooks/usePhraseCycler.ts	123	superviso	supervision	String/Comment
packages/cli/src/ui/hooks/useSlashCompletion.test.ts	296	usag	usage	String/Comment
packages/cli/src/ui/components/DebugProfiler.tsx	211	measuing	measuring	String/Comment
packages/vscode-ide-companion/src/ide-server.ts	456	rejcted	rejected	String/Comment

What did you expect to happen?

Not to have spelling errors

Client information

N/A

Login information

N/A

Anything else we need to know?

N/A

[annasba07]

/assign

[gemini-cli]

@annasba07 Thanks for taking interest but this issue is already assigned. We'd still love to have you contribute. Check out our Help Wanted list for issues where we need some extra attention.