chore: bootstrap project structure

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.tasks/STATUS.md

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+# Task Board
+_Updated: 2026-05-22_
+
+<!--
+  Add one block per task, sorted by priority. Use the emoji status legend below.
+  Per-task deep context lives in .tasks/<task-slug>.md (created on demand by using-tasks).
+
+  Block format:
+
+    ## 🔴 [task-slug] — short description
+    **Status:** active
+    **Where I stopped:** one sentence — the exact thought or action interrupted
+    **Next action:** one concrete step to resume immediately
+    **Blocker:** (only if blocked) what is preventing progress
+    **Branch:** git branch name
+
+    ---
+
+  Status legend:
+    🔴 Active     — only one at a time
+    🟡 Paused     — in progress, resumable
+    ⚪ Ready      — defined, not started
+    🟢 Done       — kept until merged
+    🔵 Blocked    — waiting on external input
+-->