style(tools): unify all function declarations to name() { style

Remove 'function' keyword from 30 declarations to match the project convention
used in core.func, error_handler.func, and all other .func files (POSIX-compatible name() { syntax)

CHANGELOG.md

@@ -469,6 +469,12 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 ## 2026-05-25
 
+### 🚀 Updated Scripts
+
+  - #### 🐞 Bug Fixes
+
+    - karakeep: fix: pip config [@CrazyWolf13](https://github.com/CrazyWolf13) ([#14703](https://github.com/community-scripts/ProxmoxVE/pull/14703))
+
 ### 💾 Core
 
   - #### ✨ New Features

ct/karakeep.sh

@@ -46,6 +46,14 @@ function update_script() {
     fi
     msg_ok "Update prepared"
 
+    if [ ! -f ~/.config/pip/pip.conf ]; then
+      mkdir -p ~/.config/pip
+      cat <<EOF >~/.config/pip/pip.conf
+[global]
+break-system-packages = true
+EOF
+    fi
+
     if grep -q "start:prod" /etc/systemd/system/karakeep-workers.service; then
       sed -i 's|^ExecStart=.*$|ExecStart=/usr/bin/node dist/index.mjs|' /etc/systemd/system/karakeep-workers.service
       systemctl daemon-reload

install/karakeep-install.sh

@@ -36,6 +36,11 @@ NODE_VERSION="24" NODE_MODULE="pnpm@${MODULE_VERSION}" setup_nodejs
 
 msg_info "Installing external JavaScript Extension for yt-dlp"
 $STD pip install -U yt-dlp-ejs
+mkdir -p ~/.config/pip
+cat <<EOF >~/.config/pip/pip.conf
+[global]
+break-system-packages = true
+EOF
 msg_ok "Installed external JavaScript Extension for yt-dlp"
 
 msg_info "Installing karakeep"

misc/error_handler.func

@@ -358,6 +358,55 @@ error_handler() {
     fi
   fi
 
+  # ── Log-pattern analysis: detect common failure causes and emit actionable hints ──
+  if [[ -n "$active_log" && -s "$active_log" ]]; then
+    local _log_tail
+    _log_tail=$(tail -n 60 "$active_log" 2>/dev/null || true)
+
+    # 1. APT/dpkg dependency conflict
+    if echo "$_log_tail" | grep -qE "Depends:|depends on.*but.*not installed|broken packages|unmet dep|dependency problems"; then
+      # Check for PostgreSQL-specific version mismatch (most actionable)
+      local _pg_conflict
+      _pg_conflict=$(echo "$_log_tail" | grep -oE 'postgresql-[0-9]+ but.*installed' | head -1 || true)
+      if [[ -n "$_pg_conflict" ]]; then
+        if declare -f msg_warn >/dev/null 2>&1; then
+          msg_warn "PostgreSQL version conflict: ${_pg_conflict}"
+          msg_warn "Hint: A package requires a specific PostgreSQL version that is not installed. Your distribution may have installed a different PG version than expected."
+        fi
+      else
+        if declare -f msg_warn >/dev/null 2>&1; then
+          msg_warn "APT dependency conflict detected. A required package is not available or is the wrong version for this system."
+          msg_warn "Hint: Run 'apt-get install -f' inside the container or check that all required repositories are configured for your distribution."
+        fi
+      fi
+    # 2. APT/GPG signature verification failure
+    elif echo "$_log_tail" | grep -qE "sqv|KEYEXPIRED|NO_PUBKEY|key is not certified|signature verification failed|is not signed|Sub-process.*sqv"; then
+      if declare -f msg_warn >/dev/null 2>&1; then
+        msg_warn "APT repository signature error detected."
+        msg_warn "Hint: A repository GPG key may be missing, expired, or the keyring file is not yet present (/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc etc.)."
+        msg_warn "Hint: Install the 'postgresql-common' package first, or re-add the repository with its correct signing key."
+      fi
+    # 3. Network / DNS failure during apt-get or curl
+    elif echo "$_log_tail" | grep -qE "Could not resolve|Failed to fetch|Unable to connect|Name or service not known|Network is unreachable|curl.*resolve"; then
+      if declare -f msg_warn >/dev/null 2>&1; then
+        msg_warn "Network or DNS failure detected."
+        msg_warn "Hint: Check the container's network connectivity, DNS settings, and whether any firewall or ad-blocker is intercepting traffic."
+      fi
+    # 4. APT lock held by another process
+    elif echo "$_log_tail" | grep -qE "Could not get lock|dpkg frontend lock|waiting for it to exit|E: Unable to lock"; then
+      if declare -f msg_warn >/dev/null 2>&1; then
+        msg_warn "APT or dpkg lock conflict detected."
+        msg_warn "Hint: Another package manager process may be running. Try 'rm /var/lib/dpkg/lock-frontend && dpkg --configure -a' inside the container."
+      fi
+    # 5. Disk space exhaustion
+    elif echo "$_log_tail" | grep -qE "No space left on device|disk quota exceeded|ENOSPC"; then
+      if declare -f msg_warn >/dev/null 2>&1; then
+        msg_warn "Disk space exhausted during installation."
+        msg_warn "Hint: Increase the container's disk size (pct resize <ctid> rootfs +2G) or clean up space first."
+      fi
+    fi
+  fi
+
   # Detect context: Container (INSTALL_LOG set + inside container /root) vs Host
   if [[ -n "${INSTALL_LOG:-}" && -f "${INSTALL_LOG:-}" && -d /root ]]; then
     # CONTAINER CONTEXT: Copy log and create flag file for host