Improve full_text_search:synchronize for Chupa Text searver change and down

[ioio000]

I ran the sync after setting the Chupa Text Server URL, but I had the same issue as Issue #92.
I couldn't search in doc, xls, pdf, eml files.
The newly added file will be searched.
Also, files attached while Chupa Text Server was stopped were not included in the search even after synchronization after startup.
production.log

Environment:
bitnami-redmine-4.1.1-2-windows-x64
mariadb-10.4.12-with-mroonga-10.02-winx64
full_text_search 1.0.4
chupa-text-docker on Ubuntu 20.04 LTS
Added gem "chupa-text-decomposer-mail" to Gemfile.local file.

[kou]

Do you want to say the followings?

• full_text_search:synchronize doesn't detect Chupa Text server URL change
  • It should run re-text-extraction against attachments that are already processed before Chupa Text server URL change
• full_text_search:synchronize doesn't care about text-extraction error by Chupa Text server down
  • It should run re-text-extraction against attachments that are failed by Chupa Text server down

[ioio000]

Yes, pretty much.

[kou]

Workaround: bin/rails full_text_search:reload

[ioio000]

It worked with the bin/rails full_text_search:target:reload command.
However, it takes a lot of time when there are many files.