p2: digest with in-sift FIFO, SQLite caches, Honcho context, recover

Dixie is capped (max_inflight 2, queue_depth 8, queue_wait 20s) and
never queued on llama-server. Streaming chat, thinking off, 45s
fallback to clean. Digest and chunk-embedding caches are
content-addressed SQLite (Honcho context is not cached). Recover
uses the guarded Fetcher. guardian-star is refused in code.

vendor/modernc.org/sqlite/lib/sqlite_g_0000000000007ffc.go

@@ -0,0 +1,25 @@
+// Code generated by modernc.org/undup from the per-target sqlite_*.go files; DO NOT EDIT.
+
+//go:build (freebsd && 386) || (freebsd && amd64) || (freebsd && arm) || (freebsd && arm64) || (linux && 386) || (linux && amd64) || (linux && arm) || (linux && arm64) || (linux && loong64) || (linux && ppc64le) || (linux && riscv64) || (linux && s390x) || (netbsd && amd64)
+
+package sqlite3
+
+const AT_SYMLINK_FOLLOW = 1024
+
+const POSIX_FADV_NORMAL = 0
+
+const POSIX_FADV_RANDOM = 1
+
+const POSIX_FADV_SEQUENTIAL = 2
+
+const POSIX_FADV_WILLNEED = 3
+
+const RTLD_NODELETE = 4096
+
+type Tdev_t = uint64
+
+type pthread_barrier_t = Tpthread_barrier_t
+
+type pthread_barrierattr_t = Tpthread_barrierattr_t
+
+type pthread_spinlock_t = Tpthread_spinlock_t