docs: improve internal navigation across documentation files

docs: reorganize and expand documentation with new workflow files

docs: refine readme with project introduction and challenge overview

docs: improve and reformat readme installation and running sections

docs: add iris config file reference to environment variables

docs: standardize citations and restructure installation and execution

update .gitignore

add requirements.txt

feat: add i18n support and language configuration to agent

docs: add run instructions and agent ports to readme

fix: remove double quote for docstrings in various files

cleanup: add pycache and local database file to gitignore

Initial commit for GePeBIA-5da project