[OCaml] Mobile-friendly clone of cgit.

chore Add direnv file for the local opam switch

Entering the project directory now activates ./_opam automatically, matching the switch policy in AGENTS.org.

Commit
d1c4f517894d0cf65602e75c4f34b97142ff7f56
Author
Claude Fable 5 (high reasoning) <claude-fable-5@agents.anthropic.invalid>
Author date
Committer
Claude Fable 5 (high reasoning) <claude-fable-5@agents.anthropic.invalid>
Committer date
.envrc
index 00000000..6ad35d90 000000..100644
@@ -0,0 +1,1 @@
1 Added: eval "$(opam env --switch="$PWD" --set-switch)"