SuperLocalMemory v4.2.12

Fixes for six reports filed after 4.2.11. No migration and no command to run.

Fixed

• A slow recall answers instead of saying busy (#304). On a store of 37,000
  memories every explicit recall ran past its time limit and came back as HTTP
  503 "ask again in 2 seconds", on an idle daemon, and every retry did the same.
  A recall that runs out of time now answers with keyword matches, labelled
  degraded_lexical and unchecked. "Busy" is kept for when every slot really is
  taken, the one case where asking again helps.
• Recall does a third of the vector work (#304). Three search channels ran
  the same nearest-neighbour search at the same moment on every recall. They
  now share one, and the channel phase stops waiting before the caller gives up.
• A purge finishes after fast note changes (#297). Editing or deleting a
  note while its save was still being enriched made that save fail three times
  with "queryable fact profile mismatch or missing fact", and
  sources remove --purge refused until the retries ran out. Such a save now
  settles at once and puts nothing back.
• A custom embedding endpoint keeps the model you chose (#302). In Modes A
  and B a blank model name was filled with the local model's id and width, which
  an endpoint like Ollama's does not serve, so every embedding call failed.
  Saving such an endpoint without a model name or width is now refused with a
  message saying what to fill in.
• Modes A and B say when data leaves this computer (#303). A remote
  embedding endpoint, or a hosted language model in Mode B, was accepted while
  the mode still reported local-only. The dashboard card, the mode status, the
  configuration warnings and the EU AI Act check now follow the configuration.
• Every MCP tool has a title and all four behaviour hints (#300), as the
  Claude and ChatGPT directories require. slm_cache_set no longer claims to be
  read-only.
• The web sign-in tells identical connections apart (#301). After
  reinstalls the connection picker listed several identical entries. Each now
  shows a short ID and its expiry, and an opt-in box removes the older ones for
  that profile and app. Patch by @DannyGi82.