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/lib/parsers/finding-id.mjs

@@ -1,54 +0,0 @@
-// lib/parsers/finding-id.mjs
-// Stable finding-ID for /trekreview v1.0.
-//
-// id = sha1(file:line:rule_key) → 40-char hex.
-// Same input always produces same output (determinism floor SC4).
-// node:crypto is built-in (zero-deps invariant).
-
-import { createHash } from 'node:crypto';
-
-const HEX_RE = /^[0-9a-f]{40}$/;
-
-/**
- * Compute a stable 40-char hex finding-ID.
- * @param {string} filePath — relative path (caller normalizes if needed)
- * @param {number|string} line — 1-based line number; coerced to string
- * @param {string} ruleKey — must be a non-empty string from RULE_KEYS
- * @returns {string} 40-char lowercase hex
- * @throws {TypeError} on bad input
- */
-export function computeFindingId(filePath, line, ruleKey) {
-  if (typeof filePath !== 'string' || filePath.length === 0) {
-    throw new TypeError('computeFindingId: filePath must be a non-empty string');
-  }
-  if (line === null || line === undefined) {
-    throw new TypeError('computeFindingId: line must be a number or numeric string');
-  }
-  if (typeof line === 'number') {
-    if (!Number.isFinite(line)) {
-      throw new TypeError('computeFindingId: line must be finite');
-    }
-  } else if (typeof line === 'string') {
-    if (line.length === 0) {
-      throw new TypeError('computeFindingId: line must not be empty string');
-    }
-  } else {
-    throw new TypeError('computeFindingId: line must be a number or numeric string');
-  }
-  if (typeof ruleKey !== 'string' || ruleKey.length === 0) {
-    throw new TypeError('computeFindingId: ruleKey must be a non-empty string');
-  }
-
-  const composite = `${filePath}:${line}:${ruleKey}`;
-  return createHash('sha1').update(composite).digest('hex');
-}
-
-/**
- * Validate a finding-ID's shape (40-char lowercase hex).
- * @param {string} id
- * @returns {{valid: boolean}}
- */
-export function parseFindingId(id) {
-  if (typeof id !== 'string') return { valid: false };
-  return { valid: HEX_RE.test(id) };
-}