Keep derived plugin metadata snapshots out of the process memo/current snapshot cache so newly added plugins under derived discovery paths are found without restart.
Adds installRecords to PluginLoadOptions and PluginRuntimeLoadContext so
callers that already hold a PluginMetadataSnapshot can pass the snapshot's
in-memory records instead of forcing each downstream loader to re-read
installs.json. resolvePluginRuntimeLoadContext extracts the records from
the snapshot via extractPluginInstallRecordsFromInstalledPluginIndex,
buildPluginRuntimeLoadOptionsFromValues forwards them, and the setup +
runtime provider load paths in providers.runtime.ts pass them through
from params.pluginMetadataSnapshot. resolvePluginLoadCacheContext uses
the threaded records (falling back to the sync read) and
loader-provenance now uses params.installRecords ?? sync-read instead of
always reading and overlaying.
