v1.0.33 Beta — mixed-path proof routing and harnesses

Beta release. Numeric tags stay versioned for tooling compatibility; user-facing release surfaces are labeled Beta.

Highlights:

• Restores mixed-path proof routing across local TCP and LoRa/WAN paths.
• Tightens boundary filtering with separate local and mentioned-address whitelists.
• Adds proof probe tooling and four named harness scenarios for repeatable transport validation.
• Ships both app-only and merged Heltec V3/V4 binaries in the release archive and direct assets.

Validation:

• Firmware compiled for rtnode_heltec_v3 and rtnode_heltec_v4.
• Merged binaries generated for both boards.
• Hardware transport scenarios previously validated: local TCP to local TCP, LoRa to local TCP, local TCP to WAN, WAN to local TCP.