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/register.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# register.sh — registra un nuevo bot en el servidor Matrix via Synapse admin API
+#
+# Uso:
+#   ./dev-scripts/register.sh <username> [displayname] [env-var-name]
+#
+# Ejemplos:
+#   ./dev-scripts/register.sh assistant-bot "Assistant" MATRIX_TOKEN_ASSISTANT
+#   ./dev-scripts/register.sh devops-bot "DevOps Agent" MATRIX_TOKEN_DEVOPS
+#
+# Requiere en .env:
+#   MATRIX_ADMIN_TOKEN=syt_...
+#   MATRIX_HOMESERVER=https://...
+
+source "$(dirname "$0")/_common.sh"
+load_env
+
+need_arg "${1:-}"
+
+USERNAME="$1"
+DISPLAYNAME="${2:-$USERNAME}"
+ENV_VAR="${3:-MATRIX_TOKEN_$(echo "$USERNAME" | tr '[:lower:]-' '[:upper:]_')}"
+
+[[ -n "${MATRIX_ADMIN_TOKEN:-}" ]] || fail "MATRIX_ADMIN_TOKEN no está en .env"
+[[ -n "${MATRIX_HOMESERVER:-}" ]]  || fail "MATRIX_HOMESERVER no está en .env"
+
+info "Registrando @${USERNAME}:${MATRIX_SERVER_NAME:-$MATRIX_HOMESERVER}..."
+echo ""
+
+"$GO" run ./cmd/register \
+  --homeserver "$MATRIX_HOMESERVER" \
+  --username   "$USERNAME" \
+  --displayname "$DISPLAYNAME" \
+  --env-var    "$ENV_VAR"
+
+echo ""
+dim "  Copia las líneas de arriba a tu .env y luego corre:"
+dim "  ./dev-scripts/start.sh $USERNAME"