v0.2.0 — LogosModuleContext modernization + v0.2 testnet port

Prerelease build from feat/modernize-modules-context (PR vpavlin#2) — the zone-sequencer rebuilt for Logos v0.2.

What's new

• Modernized to mkLogosModule + LogosModuleContext: typed modules().<dep> codegen, zero hand-written getClient.
• v0.2 testnet port via zone-sequencer-rs v0.2 (sequencer API migration; cryptarchia_info nesting handled).
• Verified end-to-end: publish → node-accept → finalized on-chain → read back via query_channel.
• Concurrent-publish fix: publish() serialized with a mutex (overlapping calls previously segfaulted the host).
• Consumption proven headless: doctests/consume-zone-sequencer.test.yaml (typed modules().zone_sequencer, no getClient) + doctests/ui-backend-fixture (QtRO ui-backend → modules(); compiles + runtime-verified in Basecamp — the shop pattern, first proof it works).

Artifacts

File	Variant	Use
…-portable.lgx	linux-amd64	Basecamp GUI (install into modules dir)
…-dev.lgx	linux-amd64-dev	logoscore / doctests (lgpm install)

Notes

• Unsigned — install with --allow-unsigned.
• Deps currently point at the xAlisher/logos-blockchain fork (orphan gitlink removed) pending upstream logos-blockchain#3063.