feat(api): add `ivr.proto`

[seeflood]

Signed-off-by: seeflood [email protected]

What this PR does: add ivr.proto

Which issue(s) this PR fixes:

Fixes #726

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov[bot]]

Codecov Report

Base: 60.61% // Head: 60.61% // No change to project coverage :thumbsup:

Coverage data is based on head (348c0cf) compared to base (c116079). Patch has no changes to coverable lines.

:exclamation: Current head 348c0cf differs from pull request most recent head ad7fc05. Consider uploading reports for the commit ad7fc05 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #727   +/-   ##
=======================================
  Coverage   60.61%   60.61%           
=======================================
  Files         133      133           
  Lines        8327     8327           
=======================================
  Hits         5047     5047           
  Misses       2704     2704           
  Partials      576      576           

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[ZLBer]

ivr is confusing :-)

[seeflood]

ivr is confusing :-)

Well, I can change it to PhoneCall

[seeflood]

ivr is confusing :-)

@ZLBer fixed. Please review again