* program-model/tree-sitter: refactor classes
* program-model/tree-sitter: change how paths are considered
This allows to parse also code in oss-fuzz (e.g. injected fuzz targets
not in upstream project)
* common: change name format for challenge commit
* program-model/codequery: make it persistent and nice
* program-model: disable janus & co for now
* patcher: make use of codequery instead of just tree-sitter
* program-model: add integration tests for codequery
* program-model/codequery: add support for different languages
* patcher: install codequery in patcher's container
* ci: fix codequery install
* program-model: ensure cqdb storage in /crs_scratch
* program-model: ensure the cqdb storage is available only at the end