Initial TTRPG character meta-builder with visual sheet editor.

Offline Electron app seeds 10 system presets, supports create-from-scratch designer with palette/drag/resize/bricks, and exports .ttrpg-system.json for the player.

Co-authored-by: Cursor <cursoragent@cursor.com>

.planning/PROJECT.md

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+# TTRPG Character Builder — Project
+
+## Vision
+
+Offline Electron meta-builder for TTRPG system schemas and character sheets, with export into TTRPG Player (`meta_builder` branch only).
+
+## Constraints
+
+- Electron offline; same pack targets as TTRPG Player
+- Player changes only on git branch `meta_builder` (never merge to main in this workstream)
+- Portable `app/shared` contract for player + future mobile
+- Functional tests + e2e (not smoke-only)
+- Depth B sheets; 10 presets; spell compendium UI; React Flow progression; no ICE combat / hit-location roller
+
+## Current status
+
+Scaffold live: shared engine + SQLite builder + UI shell + 10 preset files + player GameSystemsStore/IPC/modal.

.planning/ROADMAP.md

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+# Roadmap
+
+1. [x] Scaffold Electron/React/Vite + shared core + tests
+2. [x] SQLite + IPC + basic Admin/Designer/Fill UI
+3. [x] 10 preset scaffolds + preset smoke
+4. [x] Player `meta_builder`: GameSystems store/IPC/settings modal
+5. [ ] Visual designer DnD polish + React Flow progression editor
+6. [ ] Spell compendium CRUD + dnd.su PHB import script
+7. [ ] Player: system field on players + sheet fill window + persist
+8. [ ] Full functional e2e (Playwright Electron) builder + player
+9. [ ] Deepen presets to depth B (inventory, spells UI, armor SVG)

.planning/STATE.md

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+# State
+
+- Branch builder: local git master (new repo)
+- Player branch: `meta_builder`
+- GSD installer: requires Node >=24 and may need `GSD_ALLOW_SYMLINKED_DEST=1` on this machine
+- Next: React Flow editor, player sheet window, e2e suite