feat: add contact filter for conversations (#14629)

# Pull Request Template

## Description

Adds a Contact condition to the conversation advanced filter so agents
can search for an existing contact and filter conversations by
`conversations.contact_id`.

Fixes
[CW-7239](https://linear.app/chatwoot/issue/CW-7239/contact-filter-for-conversations)

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality not to work as expected)
- [ ] This change requires a documentation update

## How Has This Been Tested?

- `eval "$(rbenv init -)" && bundle exec rspec
spec/services/conversations/filter_service_spec.rb`
- `pnpm exec vitest --no-watch --no-cache --no-coverage --logHeapUsage
app/javascript/dashboard/components-next/filter/helper/filterHelper.spec.js
app/javascript/dashboard/store/modules/conversations/helpers/specs/filterHelpers.spec.js
app/javascript/dashboard/helper/specs/customViewsHelper.spec.js
app/javascript/dashboard/helper/specs/filterQueryGenerator.spec.js`
- `pnpm eslint`
- `eval "$(rbenv init -)" && bundle exec rubocop
spec/services/conversations/filter_service_spec.rb`

## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

---------

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

app/javascript/dashboard/components/ChatList.vue

@@ -151,6 +151,9 @@ const activeFolder = computed(() => {
   return undefined;
 });
 
+const getContact = useMapGetter('contacts/getContact');
+const folderContactId = useMapGetter('customViews/getActiveFolderContactId');
+
 const activeFolderName = computed(() => {
   return activeFolder.value?.name;
 });
@@ -456,6 +459,7 @@ function setParamsForEditFolderModal() {
     inboxes: inboxesList.value,
     labels: labels.value,
     campaigns: campaigns.value,
+    contacts: [getContact.value(folderContactId.value)],
     languages: languages,
     countries: countries,
     priority: [

app/javascript/dashboard/components/widgets/conversation/advancedFilterItems/index.js

@@ -46,6 +46,14 @@ const filterTypes = [
     filterOperators: OPERATOR_TYPES_2,
     attributeModel: 'standard',
   },
+  {
+    attributeKey: 'contact_id',
+    attributeI18nKey: 'CONTACT',
+    inputType: 'search_select',
+    dataType: 'number',
+    filterOperators: OPERATOR_TYPES_1,
+    attributeModel: 'standard',
+  },
   {
     attributeKey: 'display_id',
     attributeI18nKey: 'CONVERSATION_IDENTIFIER',
@@ -133,6 +141,10 @@ export const filterAttributeGroups = [
         key: 'team_id',
         i18nKey: 'TEAM_NAME',
       },
+      {
+        key: 'contact_id',
+        i18nKey: 'CONTACT',
+      },
       {
         key: 'display_id',
         i18nKey: 'CONVERSATION_IDENTIFIER',