refactor: content-addressed assets, cross-channel multimodal, infra simplification (#63)

* refactor(attachment): multimodal attachment refactor with snapshot schema and storage layer

- Add snapshot schema migration (0008) and update init/versions/snapshots
- Add internal/attachment and internal/channel normalize for unified attachment handling
- Move containerfs provider from internal/media to internal/storage
- Update agent types, channel adapters (Telegram/Feishu), inbound and handlers
- Add containerd snapshot lineage and local_channel tests
- Regenerate sqlc, swagger and SDK

* refactor(media): content-addressed asset system with unified naming

- Replace asset_id foreign key with content_hash as sole identifier
  for bot_history_message_assets (pure soft-link model)
- Remove mime, size_bytes, storage_key from DB; derive at read time
  via media.Resolve from actual storage
- Merge migrations 0008/0009 into single 0008; keep 0001 as canonical schema
- Add Docker initdb script for deterministic migration execution order
- Fix cross-channel real-time image display (Telegram → WebUI SSE)
- Fix message disappearing on refresh (null assets fallback)
- Fix file icon instead of image preview (mime derivation from storage)
- Unify AssetID → ContentHash naming across Go, Agent, and Frontend
- Change storage key prefix from 4-char to 2-char for directory sharding
- Add server-entrypoint.sh for Docker deployment migration handling

* refactor(infra): embedded migrations, Docker simplification, and config consolidation

- Embed SQL migrations into Go binary, removing shell-based migration scripts
- Consolidate config files into conf/ directory (app.example.toml, app.docker.toml, app.dev.toml)
- Simplify Docker setup: remove initdb.d scripts, streamline nginx config and entrypoint
- Remove legacy CLI, feishu-echo commands, and obsolete incremental migration files
- Update install script and docs to require sudo for one-click install
- Add mise tasks for dev environment orchestration

* chore: recover migrations

---------

Co-authored-by: Acbox <acbox0328@gmail.com>

scripts/install.sh

@@ -28,13 +28,23 @@ echo "${GREEN}   Memoh One-Click Install${NC}"
 echo "${GREEN}========================================${NC}"
 echo ""
 
-# Check Docker
+# Check Docker and determine if sudo is needed
+DOCKER="docker"
 if ! command -v docker >/dev/null 2>&1; then
     echo "${RED}Error: Docker is not installed${NC}"
     echo "Install Docker first: https://docs.docker.com/get-docker/"
     exit 1
 fi
-if ! docker compose version >/dev/null 2>&1; then
+if ! docker info >/dev/null 2>&1; then
+    if sudo docker info >/dev/null 2>&1; then
+        DOCKER="sudo docker"
+    else
+        echo "${RED}Error: Cannot connect to Docker daemon${NC}"
+        echo "Try: sudo usermod -aG docker \$USER && newgrp docker"
+        exit 1
+    fi
+fi
+if ! $DOCKER compose version >/dev/null 2>&1; then
     echo "${RED}Error: Docker Compose v2 is required${NC}"
     echo "Install: https://docs.docker.com/compose/install/"
     exit 1
@@ -122,7 +132,7 @@ else
 fi
 
 # Generate config.toml from template
-cp docker/config/config.docker.toml config.toml
+cp conf/app.docker.toml config.toml
 sed -i.bak "s|username = \"admin\"|username = \"${ADMIN_USER}\"|" config.toml
 sed -i.bak "s|password = \"admin123\"|password = \"${ADMIN_PASS}\"|" config.toml
 sed -i.bak "s|jwt_secret = \".*\"|jwt_secret = \"${JWT_SECRET}\"|" config.toml
@@ -138,7 +148,7 @@ mkdir -p "$MEMOH_DATA_DIR"
 
 echo ""
 echo "${GREEN}Starting services (first build may take a few minutes)...${NC}"
-docker compose up -d --build
+$DOCKER compose up -d --build
 
 echo ""
 echo "${GREEN}========================================${NC}"
@@ -152,8 +162,8 @@ echo ""
 echo "  Admin login:     ${ADMIN_USER} / ${ADMIN_PASS}"
 echo ""
 echo "Commands:"
-echo "  cd ${INSTALL_DIR} && docker compose ps       # Status"
-echo "  cd ${INSTALL_DIR} && docker compose logs -f   # Logs"
-echo "  cd ${INSTALL_DIR} && docker compose down      # Stop"
+echo "  cd ${INSTALL_DIR} && $DOCKER compose ps       # Status"
+echo "  cd ${INSTALL_DIR} && $DOCKER compose logs -f   # Logs"
+echo "  cd ${INSTALL_DIR} && $DOCKER compose down      # Stop"
 echo ""
 echo "${YELLOW}First startup may take 1-2 minutes, please be patient.${NC}"