[hq] add full L1 agent goal launcher

[FlowmemoryAI]

Summary

• add full FlowChain L1 workstream goal prompts for runtime, crypto/wallet, control-plane, dashboard, contracts, bridge, hardware, research, and HQ integration
• add a launcher script that prepares fresh agent/full-l1-* branches and opens Codex PowerShell sessions with the assigned /goal prompt
• define the concrete local/private L1 acceptance target: long-running node, transactions, wallet/signing, live API, workbench, bridge test path, multi-node smoke, packaging, and full smoke

Validation

• PowerShell parser check for infra/scripts/launch-full-l1-agents.ps1
• powershell -NoProfile -ExecutionPolicy Bypass -File .\infra\scripts\launch-full-l1-agents.ps1 -DryRun -NoBranchPrepare
• git diff --check
• launched full-L1 agent sessions locally after validation