feat(bot): add /dashboard command and MINI_APP_URL config

- Add /dashboard command to BotFather registration alongside /app
- Add new MINI_APP_URL env var for dashboard URL (separate from CORS origins)
- Pass MINI_APP_URL and BOT_API_URL in CD workflow
- Update Terraform with new variable for future infrastructure deployments

infra/terraform/main.tf

@@ -166,6 +166,9 @@ module "bot_api_service" {
     length(var.bot_mini_app_allowed_origins) == 0 ? {} : {
       MINI_APP_ALLOWED_ORIGINS = join(",", var.bot_mini_app_allowed_origins)
     },
+    var.bot_mini_app_url == null ? {} : {
+      MINI_APP_URL = var.bot_mini_app_url
+    },
     {
       SCHEDULER_OIDC_ALLOWED_EMAILS = google_service_account.scheduler_invoker.email
     }

infra/terraform/terraform.tfvars.example

@@ -20,6 +20,7 @@ bot_assistant_rate_limit_burst = 5
 bot_assistant_rate_limit_burst_window_ms = 60000
 bot_assistant_rate_limit_rolling = 50
 bot_assistant_rate_limit_rolling_window_ms = 86400000
+bot_mini_app_url = "https://household-dev-mini-app-abc123-ew.a.run.app"
 bot_mini_app_allowed_origins = [
   "https://household-dev-mini-app-abc123-ew.a.run.app"
 ]

infra/terraform/variables.tf

@@ -139,6 +139,13 @@ variable "bot_assistant_rate_limit_rolling_window_ms" {
   nullable    = true
 }
 
+variable "bot_mini_app_url" {
+  description = "Optional URL for /app and /dashboard bot commands"
+  type        = string
+  default     = null
+  nullable    = true
+}
+
 variable "bot_mini_app_allowed_origins" {
   description = "Optional allow-list of mini app origins for bot CORS handling"
   type        = list(string)