5b8cb58da1
Two fixes:
1. proactive_curiosity() was calling engram_activate_json with multi-word phrases
("memory knowledge context"). engram_activate finds seeds via istr_contains
(substring match), so the phrase had to appear verbatim in a node's content.
Almost no node contains the exact string "memory knowledge context", so only
0-2 nodes activated per curiosity scan. Fixed by activating each word separately:
"memory", "knowledge", "context" → 3 independent activate calls → hundreds of
nodes promoted to WM per cycle.
2. dist/neuron.c called http_serve() (blocking accept loop) which made awareness_run()
unreachable. soul.el correctly specifies http_serve_async but elc silently drops
unknown builtins, leaving blocking http_serve in the compiled C. Patched neuron.c
to call http_serve_async directly — HTTP server runs in a background pthread,
awareness_run() runs on the main thread as intended.