add paths-tasks

CLAUDE.md

@@ -134,9 +134,10 @@ The base template defines the visual design for all space-themed worksheets. The
 
 When generating HTML worksheets:
 
+- **OUTPUT MUST BE STATIC HTML.** Generated HTML files in `output/html/` must contain only static markup — no embedded `<script>` that computes, generates, or modifies content at runtime. If you need algorithms or calculations (graph generation, random placement, etc.), run them in a separate Node.js script in `src/scripts/`, then write the computed results as static HTML to `output/html/`. The user works with the final HTML directly and expects it to be stable across page reloads.
 - **Always read** `src/templates/space-base.html` (structure) and `src/examples/space-worksheet.html` (finished output) before generating
 - **Page size:** A4 = 210mm × 297mm
-- **CSS:** Uses Tailwind CDN in the HTML `<script>` tag (not the compiled CSS file)
+- **CSS:** Uses Tailwind CDN in the HTML `<script>` tag (not the compiled CSS file) — this is the only allowed script
 - **Page breaks:** Use `break-after: page` between pages
 - **Icons:** 58×58px inline images from `assets/icons/` next to each problem (outside the pill card)
 - **Fonts:** Nunito from Google Fonts via `<link>`
@@ -179,6 +180,20 @@ Puppeteer settings for A4 worksheets:
 - Margins: zero (CSS handles margins)
 - `preferCSSPageSize: true`
 
+## Space Route Task Type
+
+Generator script: `src/scripts/generate-space-route.mjs`
+Output: `output/html/space-route-{N}.html`
+
+### Generation rules
+- **Grid:** 7×9 hex grid with jitter, nodes evenly distributed across map area
+- **Start nodes:** Enemy = top-left corner, Player = bottom-left corner. Start nodes trimmed to exactly 2 edges
+- **No asteroids on route nodes** — decorative objects must not be placed on any node belonging to enemy or player routes, nor on neighbors of start nodes
+- **Routes use waypoints** — route goes toward an offset waypoint for ~40% of steps, then changes direction toward the final target. This prevents obvious straight-line paths
+- **Route length:** 7-9 steps for enemy, player gets 10 empty cells
+- **Ship orientation:** check each ship image and set `flipEnemy`/`flipPlayer` flags so all ships face right
+- **Difficulty via diffRange:** `[minNodeValue, maxSpread]` — first number = minimum node value, second = max |difference| between connected neighbors
+
 ## Visual Position Editor
 
 `output/html/editor.html` — a standalone drag-and-drop editor for repositioning elements (asteroids, icons, etc.) in generated worksheets.