dashboards release v4.30.0

Add an agent_platform sub-chart (Team Bumblebee) and its first dashboard, Giant Swarm / Agent Platform / LLM usage: tokens, estimated cost and latency for every model call that goes through the Agent Platform’s agentgateway LLM listener, broken down by agent, agent namespace and model. It reads the GenAI metrics the agentgateway data plane emits. Empty until an installation enables llmRouting in the Agent Platform values and points its agents at the listener.
Add a Cost accounting row to the LLM usage dashboard, for attributing spend rather than watching it: totals for the selected time range, cost per bucket stacked by agent and by model over a selectable Cost bucket period, and per-model and per-agent-and-model tables with column totals.

Move the private Falco dashboard to the new Giant Swarm Security organization and rename it to Anomaly Detection, to include other data sources.

Drop the Security: Falco Dashboard and Falco public dashboard boards, so no Falco dashboards remain outside the Giant Swarm Security organization.