chore: add changesets and CHANGELOG for versioning

.changeset/README.md

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+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets).
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md).

.changeset/config.json

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+{
+  "$schema": "https://unpkg.com/@changesets/config@3.1.3/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "restricted",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.changeset/initial-release.md

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+---
+"graph-notes": minor
+---
+
+## 0.1.0 — Initial Release
+
+### Features
+- **Tauri v2 Desktop App** — Local-first note-taking with full filesystem access
+- **Contenteditable Editor** — `[[wikilink]]` tokens render as compact chips; backspace/delete to unwrap
+- **Wikilink Autocomplete** — Type `[[` to search and link existing notes or create new ones
+- **Force-Directed Graph View** — Semantic zoom: circles morph into rounded-rect cards showing note previews
+- **Graph Interactions** — Single-click zooms into node, double-click opens note, drag to reposition
+- **shadcn-Inspired UI** — Zinc neutrals, purple accent gradients, toggle-group tabs, animated save indicator
+- **Sidebar** — File tree with search, active indicators, daily note shortcut, note count badge
+- **Backlinks Panel** — Shows all notes linking to the current page with context snippets
+- **Markdown Preview** — Toggle between edit and rendered preview with wikilink rendering
+- **Daily Notes** — Auto-created daily journal entries

CHANGELOG.md

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+# Changelog
+
+All notable changes to Graph Notes will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/), and this project adheres to [Semantic Versioning](https://semver.org/).
+
+## [0.1.0] — 2026-03-07
+
+### Added
+- **Tauri v2 Desktop App** — Local-first note-taking with full filesystem access via `tauri-plugin-fs`
+- **Contenteditable Editor** — Rich inline editing with `[[wikilink]]` token chips (compact pills that unwrap on backspace/delete)
+- **Wikilink Autocomplete** — Type `[[` to fuzzy-search and link notes; creates new notes if no match found
+- **Force-Directed Graph View** — Canvas-based visualization with semantic zoom (circles → rounded-rect cards with note previews)
+- **Graph Interactions** — Single-click animates zoom to node, double-click opens note, drag to reposition nodes
+- **shadcn-Inspired Design System** — Zinc-based neutrals, purple accent gradients, focus rings, spring transitions
+- **Sidebar** — Recursive file tree with search, collapsible folders, active-state indicators, note count badge
+- **Backlinks Panel** — Lists all notes linking to current page with highlighted context snippets
+- **Markdown Preview** — Toggle between edit and rendered preview modes with inline wikilink rendering
+- **Daily Notes** — Auto-generated daily journal entries accessible from sidebar shortcut
+- **Auto-Save** — Debounced 500ms save on every keystroke
+- **Custom Scrollbars** — Minimal 5px scrollbars matching the dark theme