fix(cli): reset plan session state on /clear - #25515

fix(cli): reset plan session state on /clear#25515

ruomengz merged 2 commits into

google-gemini:maingoogle-gemini/gemini-cli:mainfrom

jasonsuhari:issue/25500-clear-plan-sessionjasonsuhari/gemini-cli-evalkit:issue/25500-clear-plan-sessionCopy head branch name to clipboard