feat(voyage)!: marketplace handoff — rename plugins/ultraplan-local to plugins/voyage [skip-docs]

Session 5 of voyage-rebrand (V6). Operator-authorized cross-plugin scope.

- git mv plugins/ultraplan-local plugins/voyage (rename detected, history preserved)
- .claude-plugin/marketplace.json: voyage entry replaces ultraplan-local
- CLAUDE.md: voyage row in plugin list, voyage in design-system consumer list
- README.md: bulk rename ultra*-local commands -> trek* commands; ultraplan-local refs -> voyage; type discriminators (type: trekbrief/trekreview); session-title pattern (voyage:<command>:<slug>); v4.0.0 release-note paragraph
- plugins/voyage/.claude-plugin/plugin.json: homepage/repository URLs point to monorepo voyage path
- plugins/voyage/verify.sh: drop URL whitelist exception (no longer needed)

Closes voyage-rebrand. bash plugins/voyage/verify.sh PASS 7/7. npm test 361/361.

plugins/ultraplan-local/tests/synthetic/plan-run-B.md

@@ -1,77 +0,0 @@
----
-type: trekplan-synthetic
-plan_version: "1.7"
-created: 2026-05-04
-task: "Add --verbose flag to CLI"
-slug: verbose-flag
-run_id: B
-steps:
-  - "Add config entry for verbose flag in package.json"
-  - "Define types for verbose mode in types.ts"
-  - "Update parseArgs to recognize --verbose flag"
-  - "Pass verbose context through main entry point"
-  - "Add log level enum (silent, normal, verbose)"
-  - "Wire log level into logger module"
-  - "Replace console.log with logger.info in handler.ts"
-  - "Add tests for parseArgs --verbose recognition"
-  - "Add tests for log level enum mapping"
-  - "Update README with --verbose flag documentation"
-  - "Add CHANGELOG entry for verbose flag"
-  - "Bump package.json minor version"
-  - "Add lint rule blocking direct console usage"
-  - "Run lint and fix new violations"
-  - "Add CLI integration test for --verbose end-to-end"
-  - "Add fixture file for verbose log capture"
-  - "Document verbose output format in docs/cli.md"
-  - "Add jsdoc for new logger API"
-  - "Verify all existing tests pass with verbose disabled"
-  - "Add backward-compat test for legacy quiet behavior"
-  - "Add edge-case test for repeated --verbose flags"
-  - "Add edge-case test for --verbose with --silent collision"
-  - "Update help text to list --verbose flag"
-  - "Add usage example to docs/quickstart.md"
-  - "Verify CI matrix runs on Node 18 and 20"
-  - "Add npm script for verbose mode debugging"
-  - "Run security audit on logger dependency tree"
-  - "Verify no PII leaks in verbose log output"
-  - "Add manual test checklist to CONTRIBUTING.md"
-  - "Update .gitignore for verbose log dump files"
-  - "Add cleanup logic for stale verbose logs"
-  - "Add unit test for cleanup logic"
-  - "Verify exit code on verbose mode error"
-  - "Add stderr routing for warnings in verbose"
-  - "Add timestamp prefix in verbose log lines"
-  - "Add test for timestamp format"
-  - "Update troubleshooting guide with verbose flag"
-  - "Verify version sync across all docs"
-  - "Add benchmark for verbose log capture overhead"
-  - "Document overhead methodology in PERF.md"
----
-
-# Synthetic plan run B — Add --verbose flag to CLI
-
-This fixture represents a second synthesized run of `/trekplan` against
-the same hand-calibrated brief used for `plan-run-A.md`. The two runs differ
-on 2 step titles (modeling realistic LLM variation).
-
-## How this fixture is used
-
-See `plan-run-A.md` for the determinism contract.
-
-## Fixture math
-
-- A has 40 unique step titles
-- B has 40 unique step titles
-- Intersection (shared titles): 38
-- Union: 42
-- Jaccard: 38/42 ≈ 0.9047 (well above 0.833 floor)
-
-## Differences from run A
-
-- A includes "Add benchmark for verbose log emission cost" → B replaces with
-  "Add benchmark for verbose log capture overhead"
-- A includes "Document benchmark methodology in PERF.md" → B replaces with
-  "Document overhead methodology in PERF.md"
-
-These represent the kind of paraphrase variation a stochastic planner may
-produce on consecutive runs against an identical brief.