A separate jolt-deps executable (mirroring jpm beside janet) resolves a
deps.edn into source roots and runs jolt with them on JOLT_PATH; the runtime
stays deps-agnostic.
- src/jolt/deps.janet: read deps.edn (Janet parses it directly), resolve
:git/* and :local/root via jpm/pm's download-bundle (git fetch + cache, no
build), recurse for transitive deps, return de-duped roots. jpm loaded
lazily so it's never embedded. Roots cached on a deps.edn hash.
- src/jolt/deps_cli.janet + project.janet: the jolt-deps tool — path/run/repl/-e.
- main: apply JOLT_PATH at runtime (the CLI ctx is frozen into the image at
build, so init's env read wouldn't see it).
Verified end to end against a local dep and a real git dep (medley). git only,
pure clj/cljc. Test: deps-resolve-test (local deps, no network).
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