This converts the blob store from having deltas, directs, and
tombstones, to just having direct pages. This simplifies a lot of code,
since we don't have to constantly ensure that deltas always have their
parent available.
This removes the hardcoded text diff logic from clay, which was
previously required for bootstrapping.
Over the wire, we handle both old and new requests and responses
transparently, so communication is normal in both directions across
ships which do or do not have this change.
We had trie operations independently implemented in +de in arvo,
+an:cloy in zuse, +zu in clay, lib/trie, and app/spider. This unifies
them all into +de in arvo, aggregating the used operations.
This crashed at runtime when `a` is null because it tried to instantiate
`meg`, and that means bunting its argument, and that calls `node`, where
the assert failed.
Wet gates use the bunt of their formal argument, so we use that.
This fixes a space leak where the entire ford/clay core would be
included in the ford cache. Heavily reduces memory usage by clay,
reducing total usage from 100-200MB to around 10MB.
Instead of reporting a single memory size for built files, marks and
conversions, we now report memory size per path, mark name and mark
pair, respectively.
+sign:schnorr crashes on `=(0 sk)`, so the bounds checking code is not
exercised for sk=0. It also crashes on `(gte sk n.domain.c)`, which is
redundant with the size check on sk, so we remove that.
