## Linear Ticket
https://linear.app/chatwoot/issue/CW-4569/nomethoderror-undefined-method-blocked-for-nil-nomethoderror
## Description
Fixes NoMethodError in ConversationMuteHelpers that occurs during
contact deletion race condition.
When a contact is deleted, there's a brief window (~50-150ms) where
contact_id becomes nil but conversations still exist. If ResolutionJob
runs during this window, the muted? method crashes trying to call
blocked? on nil.Fixes # (issue)
## Type of change
- [ ] Bug fix (non-breaking change which fixes an issue)
## How Has This Been Tested?
- Created orphaned conversations (contact_id = nil)
- Called muted?, mute!, unmute! - all return gracefully
- Verified async deletion still works correctly
## Checklist:
- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
Co-authored-by: Sojan Jose <sojan@pepalo.com>
### 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>

### Snyk has created this PR to fix 1 vulnerabilities in the rubygems
dependencies of this project.
#### Snyk changed the following file(s):
- `Gemfile`
<details>
<summary>⚠️ <b>Warning</b></summary>
```
Failed to update the Gemfile.lock, please update manually before merging.
```
</details>
#### Vulnerabilities that will be fixed with an upgrade:
| | Issue | Score |
:-------------------------:|:-------------------------|:-------------------------
 | Web Cache Poisoning
<br/>[SNYK-RUBY-RACK-1061917](https://snyk.io/vuln/SNYK-RUBY-RACK-1061917)
| **616**
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[//]: #
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---------
Co-authored-by: snyk-bot <snyk-bot@snyk.io>
- Mark all messages as read by providing the conversation ID and timestamp.
- For Instagram, ensure all previous messages that weren't marked as failed are now marked as read. This is because the read events are only triggered for the most recent message and not for any previous ones.
We will be adding a limit to the resolution job so that it is performed at a spaced interval. This will ensure there won't be a sudden spike in resource usage
fixes: chatwoot/product#707