fix: Update validations for filter service (#8239)

- Refactor filter service for better readability and maintenance
- Add validations for the following:
   - If an invalid attribute is passed, a custom exception InvalidAttribute will be thrown.
   - If an invalid operator is passed, a custom exception InvalidOperator will be thrown.
   - If an invalid value (currently checking only null check), a custom exception InvalidValue will be thrown.

Fixes: https://linear.app/chatwoot/issue/CW-2702/activerecordstatementinvalid-pginvalidtextrepresentation-error-invalid
Fixes: https://linear.app/chatwoot/issue/CW-2703/activerecordstatementinvalid-pginvaliddatetimeformat-error-invalid
Fixes:  https://linear.app/chatwoot/issue/CW-2700/activerecordstatementinvalid-pgsyntaxerror-error-syntax-error-at-or


Co-authored-by: Sojan <sojan@pepalo.com>

app/services/automation_rules/condition_validation_service.rb

@@ -5,8 +5,8 @@ class AutomationRules::ConditionValidationService
     @rule = rule
     @account = rule.account
 
-    file = File.read('./lib/filters/filter_keys.json')
-    @filters = JSON.parse(file)
+    file = File.read('./lib/filters/filter_keys.yml')
+    @filters = YAML.safe_load(file)
 
     @conversation_filters = @filters['conversations']
     @contact_filters = @filters['contacts']

app/services/automation_rules/conditions_filter_service.rb

@@ -11,8 +11,9 @@ class AutomationRules::ConditionsFilterService < FilterService
     @account = conversation.account
 
     # setup filters from json file
-    file = File.read('./lib/filters/filter_keys.json')
-    @filters = JSON.parse(file)
+    file = File.read('./lib/filters/filter_keys.yml')
+    @filters = YAML.safe_load(file)
+
     @conversation_filters = @filters['conversations']
     @contact_filters = @filters['contacts']
     @message_filters = @filters['messages']