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/plan-schema.mjs

@@ -1,126 +0,0 @@
-// lib/parsers/plan-schema.mjs
-// Plan v1.7 schema parser — heading shape detection.
-//
-// The canonical step heading is `### Step N: <title>` (literal colon-space).
-// Forbidden narrative drift formats (introduced in v1.8.0 to defend against
-// Opus 4.7 schema-drift): `## Fase N`, `### Phase N`, `### Stage N`, `### Steg N`.
-//
-// This module extracts step boundaries; per-step body parsing lives elsewhere.
-
-import { ok, fail, issue } from '../util/result.mjs';
-
-export const STEP_HEADING_REGEX = /^### Step (\d+):\s+(.+?)\s*$/m;
-export const STEP_HEADING_GLOBAL = /^### Step (\d+):\s+(.+?)\s*$/gm;
-export const FORBIDDEN_HEADING_REGEX = /^(?:##|###) (?:Fase|Phase|Stage|Steg) \d+/m;
-export const FORBIDDEN_HEADING_GLOBAL = /^(?:##|###) (?:Fase|Phase|Stage|Steg) \d+/gm;
-export const PLAN_VERSION_REGEX = /^plan_version:\s*['"]?([\d.]+)['"]?/m;
-
-/**
- * Find all step heading positions in plan text.
- * @returns {Array<{n: number, title: string, line: number, offset: number}>}
- */
-export function findSteps(text) {
-  if (typeof text !== 'string') return [];
-  const out = [];
-  STEP_HEADING_GLOBAL.lastIndex = 0;
-  let m;
-  while ((m = STEP_HEADING_GLOBAL.exec(text)) !== null) {
-    const offset = m.index;
-    const line = text.slice(0, offset).split(/\r?\n/).length;
-    out.push({ n: Number.parseInt(m[1], 10), title: m[2].trim(), line, offset });
-  }
-  return out;
-}
-
-/**
- * Find forbidden narrative-drift heading occurrences (Fase/Phase/Stage/Steg N).
- * @returns {Array<{form: string, line: number, offset: number, raw: string}>}
- */
-export function findForbiddenHeadings(text) {
-  if (typeof text !== 'string') return [];
-  const out = [];
-  FORBIDDEN_HEADING_GLOBAL.lastIndex = 0;
-  let m;
-  while ((m = FORBIDDEN_HEADING_GLOBAL.exec(text)) !== null) {
-    const offset = m.index;
-    const line = text.slice(0, offset).split(/\r?\n/).length;
-    const raw = m[0];
-    out.push({ form: raw, line, offset, raw });
-  }
-  return out;
-}
-
-/**
- * Slice plan text into per-step sections.
- * @returns {Array<{n: number, title: string, body: string, line: number}>}
- */
-export function sliceSteps(text) {
-  const heads = findSteps(text);
-  const sections = [];
-  for (let i = 0; i < heads.length; i++) {
-    const start = heads[i].offset;
-    const end = i + 1 < heads.length ? heads[i + 1].offset : text.length;
-    const block = text.slice(start, end);
-    sections.push({
-      n: heads[i].n,
-      title: heads[i].title,
-      body: block,
-      line: heads[i].line,
-    });
-  }
-  return sections;
-}
-
-/**
- * Extract `plan_version: X.Y` from frontmatter or doc body.
- */
-export function extractPlanVersion(text) {
-  const m = typeof text === 'string' ? text.match(PLAN_VERSION_REGEX) : null;
-  return m ? m[1] : null;
-}
-
-/**
- * Validate plan structure at the heading level.
- * Strict mode: forbidden-heading count > 0 → error. Step numbers must be 1..N contiguous.
- * @returns {import('../util/result.mjs').Result}
- */
-export function validatePlanHeadings(text, opts = {}) {
-  const strict = opts.strict !== false;
-  const errors = [];
-  const warnings = [];
-
-  if (typeof text !== 'string') {
-    return fail(issue('PLAN_INPUT', 'Plan text is not a string'));
-  }
-
-  const forbidden = findForbiddenHeadings(text);
-  if (forbidden.length > 0) {
-    const list = forbidden.map(f => `line ${f.line}: ${f.raw}`).join('; ');
-    const errorIssue = issue(
-      'PLAN_FORBIDDEN_HEADING',
-      `Found ${forbidden.length} forbidden narrative-drift heading(s): ${list}`,
-      'Use canonical "### Step N: <title>". Forbidden forms: Fase/Phase/Stage/Steg.',
-    );
-    if (strict) errors.push(errorIssue);
-    else warnings.push(errorIssue);
-  }
-
-  const steps = findSteps(text);
-  if (steps.length === 0) {
-    errors.push(issue('PLAN_NO_STEPS', 'No step headings found', 'Expected at least one "### Step 1: <title>".'));
-  } else {
-    const numbers = steps.map(s => s.n);
-    for (let i = 0; i < numbers.length; i++) {
-      if (numbers[i] !== i + 1) {
-        errors.push(issue(
-          'PLAN_STEP_NUMBERING',
-          `Step numbering breaks at position ${i + 1} (got Step ${numbers[i]})`,
-          'Steps must be 1..N contiguous and ordered.',
-        ));
-        break;
-      }
-    }
-  }
-
-  return { valid: errors.length === 0, errors, warnings, parsed: { steps, forbidden } };
-}