cron: hourly cadence at :07 and :37 past the hour

Align with the legacy LEM-benchmarks cron cadence already running on
charon (the old Ollama pipeline pushes at '7 * * * *'). Also bumping
the clone path assumption from $HOME/LEM-Eval to
$HOME/PycharmProjects/LEM-Eval to match the actual install location
lemmy uses on charon.

submit.cron 7 * * * * once per hour, flock-guarded against overlap
maintain.cron 37 * * * * git pull LEM-Eval + lem-benchmarks (~30 min
offset from submit so it doesn't race)

Co-Authored-By: Virgil <virgil@lethean.io>

cron/maintain.cron

@@ -1,7 +1,8 @@
 # LEM-Eval maintain cron — git-pulls LEM-Eval + lem-benchmarks hourly so
 # config edits and tool updates propagate to workers automatically.
 #
-# Pairs with submit.cron. Runs 15 min past the hour so it doesn't collide
-# with the :00 and :30 submit runs.
+# Pairs with submit.cron. Runs at :37 past the hour, ~30 min offset
+# from the :07 submit cron so it doesn't interfere with in-flight
+# evals.
 
-15 * * * * cd $HOME/LEM-Eval && ./lem-eval.sh maintain >> /tmp/lem-eval-maintain.log 2>&1
+37 * * * * cd $HOME/PycharmProjects/LEM-Eval && ./lem-eval.sh maintain >> /tmp/lem-eval-maintain.log 2>&1

cron/submit.cron

@@ -1,11 +1,14 @@
-# LEM-Eval submit cron — runs one pass over all targets owned by this host.
+# LEM-Eval submit cron — one pass per hour over all runnable targets.
+#
+# Runs at :07 past the hour to match the legacy LEM-benchmarks cadence
+# Snider's homelab has been running since the Ollama pipeline days. The
+# flock guard prevents overlap if a previous run is still going (the
+# 26B/31B model targets can take longer than an hour to complete 8-PAC).
 #
 # Install with:
 #   crontab -l | cat - cron/submit.cron | crontab -
 #
-# Or copy the line below into your existing crontab. Adjust the path to the
-# LEM-Eval clone if you installed it elsewhere than $HOME/LEM-Eval.
-#
-# The flock guard prevents overlap if a previous run is still going.
+# Adjust the path to the LEM-Eval clone if you installed it elsewhere
+# than $HOME/PycharmProjects/LEM-Eval.
 
-*/30 * * * * cd $HOME/LEM-Eval && flock -n .lock ./lem-eval.sh once >> /tmp/lem-eval.log 2>&1
+7 * * * * cd $HOME/PycharmProjects/LEM-Eval && flock -n .lock ./lem-eval.sh once >> /tmp/lem-eval.log 2>&1