services: add mood, moodtracker, overleaf, personal-sensing; update ollama

Compose and supporting code for four services that had been running or
prototyped without their config tracked here, per the repo convention that
agap_git holds the compose + config while application source lives in each
service's own Gitea repo.

Only placeholder credentials are included: mood/.env.example and
moodtracker/.env.example ship dummy values, and overleaf/variables.env carries
app name and feature flags only. Real values stay in Vaultwarden.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

mood/docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+  mood-archive:
+    build: .
+    container_name: mood-archive
+    restart: unless-stopped
+    environment:
+      TZ: Europe/Moscow
+      MOOD_DB_PATH: /data/mood_archive.sqlite
+      MOOD_SOURCE_DB_PATH: /source/moodtracker/mood.db
+      # Manual-entry data; hourly polling is more than enough (local file read).
+      MOOD_SYNC_INTERVAL_SECONDS: ${MOOD_SYNC_INTERVAL_SECONDS:-3600}
+      MOOD_OVERLAP_ROWS: ${MOOD_OVERLAP_ROWS:-3}
+    volumes:
+      # Local mood archive lives alongside the other Agap databases.
+      - /mnt/dbs/mood:/data
+      # moodtracker's own SQLite file, READ-ONLY — no credentials, no HTTP,
+      # no risk of this service ever writing into the live app's DB.
+      - /home/alvis/moodtracker/data:/source/moodtracker:ro
+    logging:
+      options:
+        max-size: 10m