feat: Add support for minutes in auto resolve feature (#11269)

### Summary

- Converts conversation auto-resolution duration from days to minutes
for more
granular control
- Updates validation to allow values from 10 minutes (minimum) to 999
days (maximum)
- Implements smart messaging to show appropriate time units in activity
messages

###  Changes

- Created migration to convert existing durations from days to minutes
(x1440)
- Updated conversation resolver to use minutes instead of days
- Added dynamic translation key selection based on duration value
- Updated related specs and documentation
- Added support for displaying durations in days, hours, or minutes
based on value

###  Test plan

- Verify account validation accepts new minute-based ranges
- Confirm existing account settings are correctly migrated
- Test auto-resolution works properly with minute values
- Ensure proper time unit display in activity messages

---------

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/models/account.rb

@@ -11,6 +11,7 @@
 #  limits                :jsonb
 #  locale                :integer          default("en")
 #  name                  :string           not null
+#  settings              :jsonb
 #  status                :integer          default("active")
 #  support_email         :string(100)
 #  created_at            :datetime         not null
@@ -28,13 +29,28 @@ class Account < ApplicationRecord
   include Featurable
   include CacheKeys
 
+  SETTINGS_PARAMS_SCHEMA = {
+    'type': 'object',
+    'properties':
+      {
+        'auto_resolve_after': { 'type': %w[integer null], 'minimum': 10, 'maximum': 1_439_856 },
+        'auto_resolve_message': { 'type': %w[string null] }
+      },
+    'required': [],
+    'additionalProperties': false
+  }.to_json.freeze
+
   DEFAULT_QUERY_SETTING = {
     flag_query_mode: :bit_operator,
     check_for_column: false
   }.freeze
 
-  validates :auto_resolve_duration, numericality: { greater_than_or_equal_to: 1, less_than_or_equal_to: 999, allow_nil: true }
   validates :domain, length: { maximum: 100 }
+  validates_with JsonSchemaValidator,
+                 schema: SETTINGS_PARAMS_SCHEMA,
+                 attribute_resolver: ->(record) { record.settings }
+
+  store_accessor :settings, :auto_resolve_after, :auto_resolve_message
 
   has_many :account_users, dependent: :destroy_async
   has_many :agent_bot_inboxes, dependent: :destroy_async
@@ -83,6 +99,8 @@ class Account < ApplicationRecord
   enum locale: LANGUAGES_CONFIG.map { |key, val| [val[:iso_639_1_code], key] }.to_h
   enum status: { active: 0, suspended: 1 }
 
+  scope :with_auto_resolve, -> { where("(settings ->> 'auto_resolve_after')::int IS NOT NULL") }
+
   before_validation :validate_limit_keys
   after_create_commit :notify_creation
   after_destroy :remove_account_sequences