Add dashboard UID auto-generation and Gitea CI workflow

environments/dev/adibrov/variables_alert.tf

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+# Alert duration and timing configuration
+variable "interval_seconds" {
+  description = "Interval in seconds for evaluating alerts"
+  type        = number
+  default     = 60
+}
+
+variable "default_interval_ms" {
+  description = "Default interval in milliseconds for evaluating alert expressions"
+  type        = number
+  default     = 60000
+}
+
+variable "default_max_data_points" {
+  description = "Default maximum number of data points"
+  type        = number
+  default     = 43200
+}
+
+variable "default_no_data_state" {
+  description = "Default no data state for alerts"
+  type        = string
+  default     = "OK"
+}
+
+variable "default_exec_err_state" {
+  description = "Default execution error state for alerts"
+  type        = string
+  default     = "Error"
+}
+
+variable "default_alert_duration" {
+  description = "Default duration (in seconds) for how long a condition must be true before alerting"
+  type        = number
+  default     = 300 # 5 minutes
+}
+
+variable "default_evaluation_interval" {
+  description = "Default interval (in seconds) between alert rule evaluations"
+  type        = number
+  default     = 60 # 1 minute
+}
+
+variable "default_time_range_from" {
+  description = "Default time range (in seconds) for main query lookback"
+  type        = number
+  default     = 604800 # 7 days
+}
+
+variable "default_processing_range" {
+  description = "Default time range (in seconds) for processing blocks"
+  type        = number
+  default     = 600 # 10 minutes
+}