feat(box): add invite code handler, Settings RPA, and agent onboarding pipeline

- Support invite code discovery in main chat and redemption in settings menu
- Add Settings RPA primitives with Radix UI mouse dispatch and retry polling for async DOM
- Attribute 'has_redeemed' binary from the Additional tokens ticker / entrypoint visibility
- Unblock agent @646 by repairing warp-def/dev tunnels and redeeming REDCJ7 via dev (+1B tokens)
- Implement 'box onboard' pipeline to provision infra, authenticate, and auto-redeem queued codes
- Add 'box onboard feed-matrix' ranking all agents by work done over time, job count, and role
- Register 'InputType.SALVAGE' in loop modulation (CRITICAL priority, 600s timeout, 3 nudges to opm)
- Ingest recurring balance audits into canonical HEARTBEAT.md and TOOLS.md

bin/modulate.py

@@ -52,6 +52,7 @@ class InputType(str, Enum):
     MANUAL = "manual"      # human/operator-authored DM
     HEALTH = "health"      # system health check results
     HEARTBEAT = "heartbeat"  # loopback liveness probes
+    SALVAGE = "salvage"    # token exhaustion & onboarding work orders
 
 
 class Priority(str, Enum):
@@ -139,6 +140,11 @@ _MODULATION: Dict[Tuple[InputType, Optional[str]], Tuple] = {
     (InputType.HEALTH, "OK"):        (False,        Priority.ROUTINE,   0,        0, None),
     (InputType.HEALTH, None):        (True,         Priority.IMPORTANT, 1800,     2, "opm"),
 
+    # Salvage: token depletion & onboarding rescue.
+    (InputType.SALVAGE, "BLOCKED"):  (True,         Priority.CRITICAL,  600,      3, "opm"),
+    (InputType.SALVAGE, "LOW"):      (True,         Priority.IMPORTANT, 900,      2, "opm"),
+    (InputType.SALVAGE, None):       (True,         Priority.CRITICAL,  900,      2, "opm"),
+
     # Heartbeat loopback: NEVER tracked. Hard exclusion.
     (InputType.HEARTBEAT, None):     (False,        Priority.ROUTINE,   0,        0, None),
 }