pass on basis for autobean share as metadata to views

[maxheld83]

currently, once autobean is done, the postings no longer care carry any share-/share_ metadata, courtesy of (among others):

https://github.com/SEIAROTg/autobean/blob/b2905ec42ce140fd9261c973aa4113dabc034e77/autobean/share/policy_lib.py#L133-L138

I'd like to be able to still see this metadata on all the (now autobean-shared) postings, perhaps prefixed with autobean- (or similar), to make sure it is "defused" (i.e. won't be used to share again).

I tried fixing this by patching the above strip_share_meta(), but that only worked for postings with "manual" (share-Lisa: 1 etc.), but did not include the sharing stemming from custom "autobean.share.policy" instructions.