feat: add TraitsTab component for managing agent traits

- Implemented TraitsTab.svelte to handle CRUD operations for agent traits.
- Integrated grid for displaying traits with context menu actions for add, edit, and delete.
- Added trait instruction editing functionality with a dedicated editor.
- Updated AdminShell to include PersonasPage for navigation.
- Enhanced AppSidebar with a new entry for Personas.
- Extended ShellPage type to include 'personas'.
- Defined new types for AgentPersona, AgentPart, and AgentTrait in types.ts.

Makefile

@@ -11,7 +11,8 @@ RELEASE_REMOTE ?= origin
 VERSION_TAG ?= $(shell git describe --tags --exact-match 2>/dev/null || echo dev)
 COMMIT_SHA ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
 BUILD_DATE ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
-RELSPEC ?= $(shell command -v relspec 2>/dev/null || echo $(HOME)/go/bin/relspec)
+#RELSPEC ?= $(shell command -v relspec 2>/dev/null || echo $(HOME)/go/bin/relspec)
+RELSPEC = /home/hein/dev/relspecgo/build/relspec
 SCHEMA_FILES := $(sort $(wildcard schema/*.dbml))
 MERGE_TARGET_TMP := $(CURDIR)/.cache/schema.merge-target.dbml
 GENERATED_SCHEMA_MIGRATION := migrations/020_generated_schema.sql