feat(idtk): commands/path-visualize.md — standalone HTML syllabus viewer for paths [DOJ-4784]

[lapc506]

Summary

Adds `commands/path-visualize.md` — a new IDTK command that reads a dojo-academy path slug and emits `paths/{slug}/syllabus.html`, an authoring-debug visual showing per-course modules + per-module artifact table (✅/❌ per artifact type).

Scope

• 6-phase command (Resolve input → Read structure → Resolve design tokens → Emit HTML → Validate → Report)
• Reads `path-overview.md` frontmatter `milestones[].courses[]`; tolerates flat-`courses` variant
• Artifact buckets: `text-.md`, `video-.md`, `slides-.html`, `quiz-.md`, `challenge-*.md`
• Brand: consumes top-level `design` + `path_visualizer` sections from `dojo-academy/instruction-bundle-spec.yaml` when present; graceful-degrades to neutral defaults + visible WARNING banner when absent
• Mobile 375px+, Ctrl+K search, filter chips, sortable columns
• Overlay protocol per DOJ-3706/3707; `${CLAUDE_PLUGIN_ROOT}` defensive per DOJ-3775

Linear

DOJ-4784

Test plan

• `check_frontmatter.py` — 68 valid, 2 skipped
• `check_agent_references.py` — 19 agents indexed, all resolve
• `check_json_schemas.py` — 4 valid

Tests deferred per brief "OR equivalent" clause — sibling commands ship without `.test.sh` files; CI scripts function as the de-facto authoring test suite.

Created by Claude Code on behalf of @andres@dojocoding.io

🤖 Generated with Claude Code

[lapc506]

@dojo-code-reviewer review

[dojo-code-reviewer]

✅ Approved

Approved — 0 blockers, 1 P3. Confidence: 4/5.

🔵 P3 — Minor

• commands/path-visualize.md:66 — 🔵 P3 (minor) — If a module folder exists but does not contain a classes/ subdirectory (e.g. if it is newly scaffolded or uses a custom structure), the parser should treat the buckets as empty rather than failing or throwing an error. Clarifying this fallback logic makes the command specification more robust.

   - Para cada módulo, leé `classes/` si existe (si no existe, tratá todos los buckets como vacíos) y clasificá cada archivo por prefijo:

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Total findings: 1 business context (1 total)

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ℹ️ Inline anchoring failed for the comments below; they are listed here instead.

• commands/path-visualize.md:66 — 🔵 P3 (minor) — If a module folder exists but does not contain a classes/ subdirectory (e.g. if it is newly scaffolded or uses a custom structure), the parser should treat the buckets as empty rather than failing or throwing an error. Clarifying this fallback logic makes the command specification more robust.

   - Para cada módulo, leé `classes/` si existe (si no existe, tratá todos los buckets como vacíos) y clasificá cada archivo por prefijo: