docs(docs): 📝 Update changelog with release notes for versions 0.3.5 and 0.3.6

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

CHANGELOG.md

@@ -5,6 +5,28 @@ Format: [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · Versioning:
 
 ---
 
+## [0.3.6] - 2026-04-19
+
+### Fixed
+- `dashboard_regen` handler now destructures `categoriesPath` from `writeDashboard()` and includes it in the response text.
+
+---
+
+## [0.3.5] - 2026-04-19
+
+### Added
+- `category` field on `ObjectiveFrontmatter` — optional string for grouping objectives by domain.
+- `DASHBOARD_CATEGORIES.md` — new generated file grouping all objectives (including done) by category, sorted alphabetically with `(uncategorized)` last.
+- `category` filter in `objectives_list` tool — pass `category` to return only matching objectives.
+- `category` input on `objective_create` tool — persisted to frontmatter and `OBJECTIVE_KEY_ORDER`.
+
+### Changed
+- `COMPLETED_OBJECTIVES.md` renamed to `DASHBOARD_COMPLETED.md` — README header updated to reference both new files.
+- `writeDashboard()` now returns `{ readmePath, completedPath, categoriesPath }` and writes all three files.
+- `DASHBOARD_COMPLETED.md` gains a Category column.
+
+---
+
 ## [0.3.4] - 2026-04-20
 
 ### Changed