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>

overleaf/docker-compose.yml

@@ -0,0 +1,79 @@
+---
+services:
+
+  # MongoDB for Overleaf data storage
+  mongo:
+    restart: always
+    image: "${MONGO_IMAGE}:${MONGO_VERSION}"
+    command: --replSet overleaf
+    container_name: mongo
+    volumes:
+      - "${MONGO_DATA_PATH}:/data/db"
+    expose:
+      - 27017
+    healthcheck:
+      test: echo 'db.stats().ok' | mongosh localhost:27017/test --quiet
+      interval: 10s
+      timeout: 10s
+      retries: 5
+    networks:
+      - overleaf
+
+  # Redis for caching and sessions
+  redis:
+    restart: always
+    image: "${REDIS_IMAGE}"
+    container_name: redis
+    command: redis-server --appendonly yes
+    volumes:
+      - "${REDIS_DATA_PATH}:/data"
+    expose:
+      - 6379
+    networks:
+      - overleaf
+
+  # Overleaf (ShareLaTeX) application
+  sharelatex:
+    restart: always
+    image: "${SHARELATEX_IMAGE}"
+    container_name: sharelatex
+    depends_on:
+      mongo:
+        condition: service_healthy
+      redis:
+        condition: service_started
+    ports:
+      - "${OVERLEAF_LISTEN_IP}:${OVERLEAF_PORT}:80"
+    volumes:
+      # Data volume
+      - "${OVERLEAF_DATA_PATH}:/var/lib/overleaf"
+      # Docker socket for sandboxed compiles
+      - "${DOCKER_SOCKET_PATH}:/var/run/docker.sock"
+    environment:
+      # Connectivity
+      OVERLEAF_MONGO_URL: "${MONGO_URL}"
+      OVERLEAF_REDIS_HOST: "${REDIS_HOST}"
+      OVERLEAF_REDIS_PORT: "${REDIS_PORT}"
+
+      # Docker and compilation settings
+      DOCKER_RUNNER: 'true'
+      SANDBOXED_COMPILES: 'true'
+      SANDBOXED_COMPILES_SIBLING_CONTAINERS: 'true'
+      SANDBOXED_COMPILES_HOST_DIR: "${OVERLEAF_DATA_PATH}/data/compiles"
+      SYNCTEX_BIN_HOST_PATH: "${OVERLEAF_DATA_PATH}/bin/synctex"
+
+      # Git bridge (disabled for Community Edition)
+      GIT_BRIDGE_ENABLED: 'false'
+
+      # Load additional environment variables
+    env_file:
+      - variables.env
+    links:
+      - mongo
+      - redis
+    networks:
+      - overleaf
+
+networks:
+  overleaf:
+    driver: bridge