0.20.0

• Refresh ESS resources for the current source language, related guards and selected effects,
  transport clients, finite protocol checks and compatibility gates. Bundle executable examples
  and distinguish supported declarations from implementation and synthesis limits.
• Replace the current lending walkthrough and its fixtures with Rust, canonical suite IR and
  the native ESS runner. All 17 scenarios pass with real consistency tokens and checked fresh
  reads; deliberate lifecycle, token and view defects are rejected. Keep dated Go recordings as
  historical evidence and provide a current governed-plan continuation.
• Migrate Connectors guidance to v0.28.0: local setup, protected acquisition, exact operation
  schemas and revisions, approval proofs and explicit service endpoints. b10x now installs and
  upgrades its source-only CLI from the exact release tag (Rust 1.91 or newer). Existing 0.7.x
  configuration and credentials require an explicit migration; this release does not convert them.
• Repair upgrades from a frozen local marketplace by planning the selected source change before
  plugin upgrades, with the existing snapshot and undo path preserved.
• Match eval AEP 0.68.0 to Metaharness 0.9.1's embedded source. Install the actual eval prerequisites
  and make their executables available on the governed child's PATH. Update the planning protocol,
  shared Gates workflow and Docs System package pins.
• Expand current-tool and upstream checks to maintained eval, protocol and package pins,
  Metaharness and Connectors command contracts, command options and executable ESS examples.
  Report source-only verification separately from executed binaries. Exclude generated website
  output from source checks without hiding authored documents.
• Measure Rust trials with Cargo summaries, preserving abnormal process failures and incomplete
  runs. Close false-green cases involving equals-style global options and a crashed test process
  after an earlier passing target.
• Refresh setup, routing, delivery and maintenance instructions. Source releases finish after
  their own checks and artifact publication; downstream documentation publication is asynchronous.
• Make governed-plan trials install Worktree and allow their own sandbox's managed trees. Explain
  named partial-wave obligations, remaining conformance gaps and archive recovery in the tutorial.