feat: add assistant bot with LLM integration and configuration

- Implemented the assistant bot with basic command handling and LLM routing.
- Created configuration file for the assistant bot with personality, behavior, and LLM settings.
- Added system prompt for the assistant bot to define its capabilities and limitations.
- Developed registration script for creating Matrix bot users via Synapse admin API.
- Introduced common development scripts for agent management (start, stop, list, logs).
- Scaffolded new agent creation script to streamline the addition of new agents.
- Implemented agent removal script to disable agents without deleting data.

dev-scripts/list.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# list.sh — muestra todos los agentes y su estado actual
+# Uso: ./dev-scripts/list.sh
+
+source "$(dirname "$0")/_common.sh"
+
+printf "%-22s  %-12s  %-8s  %s\n" "ID" "STATUS" "VERSION" "DESCRIPTION"
+printf '%s\n' "$(printf '─%.0s' {1..70})"
+
+while IFS='|' read -r id version enabled desc _cfg; do
+  status=$(agent_status "$id" "$enabled")
+
+  case "$status" in
+    running)  label="${GRN}● running${RST}" ;;
+    stopped)  label="${DIM}○ stopped${RST}" ;;
+    disabled) label="${YLW}  disabled${RST}" ;;
+    *)        label="$status" ;;
+  esac
+
+  # Truncate description
+  [[ ${#desc} -gt 38 ]] && desc="${desc:0:37}…"
+
+  printf "%-22s  " "$id"
+  printf "${label}"
+  printf "  %-8s  %s\n" "$version" "$desc"
+
+done < <(list_agents_raw)