refactor: rename the modes to say what they actually do

`full` was the misleading one: it is the abort-LIMITED run, the one that
deliberately stops enumerating a profile as soon as it reaches content already
held. Calling it "full" invited exactly the wrong assumption about coverage.
And `sweep` gave no hint that it was the exhaustive one.

    full   -> profiles     every surface, --abort 50, ~40-60 requests
    sweep  -> full-sweep   every surface, no abort,   ~420 requests

The old names now exit 2 with a pointer to the new one rather than a bare
"unknown mode", since muscle memory and any stray crontab will still use them.

full-sweep's description now says what it costs. At ~420 requests it is the
same order as the run that preceded the 2026-08-21 scraping warning, spent to
catch a handful of retroactively edited posts, so the docs suggest running it
by hand when you mean to rather than leaving it on a timer. Its cadence was
never actually agreed.

Units renamed to match and re-verified with systemd-analyze; the old ones are
removed from the host. All three timers remain disabled.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UXfdJu7QhSJLr47K7koTDF

scripts/gdl-cron.sh

@@ -1,15 +1,19 @@
 #!/bin/bash
 # Unattended wrapper around gdl-sync.py. One argument: the run mode.
 #
-#   stories   daily      ~6 requests; the only surface that cannot be backfilled
-#   full      monthly    every surface, --abort 50 (stops at already-held content)
-#   sweep     quarterly  every surface, no abort -- the only run that notices
-#                        carousels edited after we archived them
+#   stories     daily      ~6 requests; the only surface that cannot be backfilled
+#   profiles    monthly    every surface, --abort 50: stops enumerating a profile
+#                          once it reaches content already held, so it costs
+#                          ~40-60 requests and catches everything NEW
+#   full-sweep  rarely     every surface, no abort: walks each profile to the end
+#                          for ~420 requests. The only run that notices posts
+#                          EDITED after we archived them, and by far the most
+#                          expensive thing here -- see TOOLING.md before running.
 #
 # Exits non-zero if the sync does, so cron mails you. Everything is logged.
 set -eu
 
-MODE="${1:?usage: gdl-cron.sh stories|full|sweep}"
+MODE="${1:?usage: gdl-cron.sh stories|profiles|full-sweep}"
 
 GDL_HOME="${GDL_HOME:-$HOME/gdl}"
 INDEX="${GDL_INDEX:-https://instaarchive.ergosteur.com}"
@@ -38,12 +42,17 @@ case "$MODE" in
   # skipped all six sources and reported success. A stories fetch is one
   # request per profile, so the worst case 8h permits is roughly twelve
   # requests in a day instead of six.
-  stories) ARGS="--only stories --min-interval 8" ;;
-  full)    ARGS="--only posts,reels,stories,highlights --abort 50" ;;
-  # No --abort: the whole point of sweep is enumerating to the end, so it is
-  # the only run that notices carousels edited after we archived them.
-  sweep)   ARGS="--only posts,reels,stories,highlights" ;;
-  *) echo "unknown mode: $MODE" >&2; exit 2 ;;
+  stories)    ARGS="--only stories --min-interval 8" ;;
+  profiles)   ARGS="--only posts,reels,stories,highlights --abort 50" ;;
+  # No --abort: the whole point of full-sweep is enumerating to the end, so it
+  # is the only run that notices carousels edited after we archived them.
+  full-sweep) ARGS="--only posts,reels,stories,highlights" ;;
+  # Renamed 2026-08-22: "full" was misleading (it is the abort-LIMITED run) and
+  # "sweep" did not say it was the exhaustive one. Catch the old names rather
+  # than failing with a bare error, in case something still passes them.
+  full)  echo "mode 'full' was renamed to 'profiles'" >&2; exit 2 ;;
+  sweep) echo "mode 'sweep' was renamed to 'full-sweep'" >&2; exit 2 ;;
+  *) echo "unknown mode: $MODE (want stories|profiles|full-sweep)" >&2; exit 2 ;;
 esac
 
 mkdir -p "$GDL_HOME/logs"

scripts/systemd/gdl-sync@full-sweep.timer

@@ -0,0 +1,18 @@
+[Unit]
+Description=Full Instagram archive sweep, no abort (~420 requests)
+# The only run that enumerates every profile to the end, and so the only one
+# that notices carousels edited after we archived them (test case 15).
+#
+# It is also by far the most expensive thing here: ~420 requests to
+# instagram.com, the same order as the run that preceded the 2026-08-21
+# scraping warning, spent to catch a handful of retroactively edited posts.
+# Consider running it by hand when you mean to, rather than on a timer.
+
+[Timer]
+# Month names are not valid in OnCalendar's date field -- numeric only.
+OnCalendar=*-01,04,07,10-07 04:00:00
+RandomizedDelaySec=45m
+Persistent=true
+
+[Install]
+WantedBy=timers.target

scripts/systemd/gdl-sync@profiles.timer

@@ -1,5 +1,5 @@
 [Unit]
-Description=Monthly Instagram archive sync (all surfaces, --abort 50)
+Description=Monthly Instagram profile sync (all surfaces, --abort 50)
 
 [Timer]
 OnCalendar=*-*-03 04:00:00

scripts/systemd/gdl-sync@sweep.timer

@@ -1,13 +0,0 @@
-[Unit]
-Description=Quarterly full Instagram archive sweep (no abort)
-# The only run that enumerates every profile to the end, and so the only one
-# that notices carousels edited after we archived them (test case 15).
-
-[Timer]
-# Month names are not valid in OnCalendar's date field -- numeric only.
-OnCalendar=*-01,04,07,10-07 04:00:00
-RandomizedDelaySec=45m
-Persistent=true
-
-[Install]
-WantedBy=timers.target