Add client/install.sh; fix server/install.sh paths after move

server/install.sh was broken after moving into server/: SCRIPT_DIR now
resolves to the server/ subdirectory, so requirements path, log dir, and
systemd WorkingDirectory all pointed at wrong locations. Introduce REPO_DIR
(parent of SCRIPT_DIR) and use it throughout.

client/install.sh creates a venv at client/.venv, installs
client/requirements.txt, and writes a client/run.sh launcher.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/install.sh

@@ -15,12 +15,13 @@
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_DIR="$(dirname "$SCRIPT_DIR")"
 SERVICE_NAME="we_monitor"
 CREDS_DIR="$HOME/.config/we_monitor"
 CREDS_FILE="$CREDS_DIR/credentials.json"
 SYSTEMD_DIR="$HOME/.config/systemd/user"
 SERVICE_FILE="$SYSTEMD_DIR/$SERVICE_NAME.service"
-LOG_DIR="$SCRIPT_DIR/logs"
+LOG_DIR="$REPO_DIR/logs"
 
 VENV="$SCRIPT_DIR/.venv"
 PYTHON="$VENV/bin/python"
@@ -40,7 +41,7 @@ if $IS_UPDATE; then
 else
     echo "==> we_monitor installer"
 fi
-echo "    Project : $SCRIPT_DIR"
+echo "    Project : $REPO_DIR"
 echo "    User    : $USER"
 echo ""
 
@@ -54,7 +55,7 @@ fi
 
 echo "==> Installing / updating dependencies"
 "$VENV/bin/pip" install --quiet --upgrade pip
-"$VENV/bin/pip" install --quiet --upgrade -r "$SCRIPT_DIR/server/requirements.txt"
+"$VENV/bin/pip" install --quiet --upgrade -r "$SCRIPT_DIR/requirements.txt"
 echo "    Python  : $PYTHON"
 echo ""
 
@@ -100,7 +101,7 @@ Wants=network-online.target
 
 [Service]
 Type=simple
-WorkingDirectory=$SCRIPT_DIR
+WorkingDirectory=$REPO_DIR
 ExecStart=$PYTHON -m server.main -c $CREDS_FILE
 Restart=on-failure
 RestartSec=60