Add GET /v1/users/developer/webhook/{wtype}/health: developer webhook delivery health - #8988

Replace `'\nℹ️··No·Firebase·token·provided·(set·OMI_ID_TOKEN·or·OMI_REFRESH_TOKEN)·—·skipping·the·app-faithful·auth·probe.'` with `⏎····'\nℹ️··No·Firebase·token·provided·(set·OMI_ID_TOKEN·or·OMI_REFRESH_TOKEN)·—·skipping·the·app-faithful·auth·probe.'⏎··`

Replace ``···expires·in·${expIn}s${expIn·!==·null·&&·expIn·<=·0·?·'·⚠️··EXPIRED·—·refresh·it'·:·''}`` with `⏎······`···expires·in·${expIn}s${expIn·!==·null·&&·expIn·<=·0·?·'·⚠️··EXPIRED·—·refresh·it'·:·''}`⏎····`

Replace ``···uid=${claims.user_id·||·claims.sub}·email=${claims.email·||·'(none)'}·aud=${claims.aud}`` with `⏎······`···uid=${claims.user_id·||·claims.sub}·email=${claims.email·||·'(none)'}·aud=${claims.aud}`⏎····`

Insert `⏎·······`

Insert `⏎·······`

Replace `·body·+=·c` with `⏎········body·+=·c⏎·····`

Replace `·ws.terminate()·}·catch·{·/*·already·closing·*/` with `⏎········ws.terminate()⏎······}·catch·{⏎········/*·already·closing·*/⏎·····`

Replace ``securetoken·exchange·failed:·HTTP·${res.status}·${JSON.stringify(data).slice(0,·200)}`` with `⏎······`securetoken·exchange·failed:·HTTP·${res.status}·${JSON.stringify(data).slice(0,·200)}`⏎····`

Delete `,`