chore: release Forge v0.29.4 (AXI-140)

[Codename-11]

Summary

• bump Forge to v0.29.4
• add curated release notes for the AXI-139 dashboard and Command Center layout fixes
• record the serialized release preparation in DEVLOG

Verification

• PR fix: balance dashboard and attention flow (AXI-139) #81 exact implementation head: all GitHub CI checks green
• pnpm lint
• pnpm typecheck
• pnpm ci:local and ci:local:quality were attempted but the local wrapper timed out without a verdict; this release PR's exact-head CI is the authoritative gate

Releases AXI-139
Tracks AXI-140