perf(shared-pkgs): declare sideEffects for aggressive tree-shaking

Following the shared-icons fix (d5cabed14), audit every workspace
package's src/index.ts for top-level side effects and flag the
ones that are safe to tree-shake:

- Pure TS re-export barrels (types, theme, utils, llm, storage):
  "sideEffects": false — lets Vite prune entire submodules when a
  consumer only imports a subset of named exports. Matters most for
  shared-llm where the orchestrator/BYOK branch isn't needed on
  every route.

- Packages that ship .svelte components (branding, ui, links):
  "sideEffects": ["**/*.svelte", "**/*.css"] — same tree-shaking
  benefit for TS modules, but keeps Svelte component CSS injection
  intact.

The state-holding submodules (shared-ui drag-state/toast,
shared-llm store, shared-links mutations) are still evaluated
whenever their exports are referenced, so behaviour is unchanged —
the flag only lets the bundler skip modules that aren't in the
dependency graph at all.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/shared-branding/package.json

@@ -3,6 +3,10 @@
 	"version": "1.0.0",
 	"private": true,
 	"type": "module",
+	"sideEffects": [
+		"**/*.svelte",
+		"**/*.css"
+	],
 	"svelte": "./src/index.ts",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",

packages/shared-links/package.json

@@ -3,6 +3,10 @@
 	"version": "0.1.0",
 	"private": true,
 	"type": "module",
+	"sideEffects": [
+		"**/*.svelte",
+		"**/*.css"
+	],
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",
 	"exports": {

packages/shared-llm/package.json

@@ -2,6 +2,7 @@
 	"name": "@mana/shared-llm",
 	"version": "2.0.0",
 	"private": true,
+	"sideEffects": false,
 	"description": "Tiered LLM orchestrator for Mana — routes tasks across rules / browser-edge / mana-server / cloud backends with explicit user-controlled privacy tiers",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",

packages/shared-storage/package.json

@@ -2,6 +2,7 @@
 	"name": "@mana/shared-storage",
 	"version": "0.1.0",
 	"private": true,
+	"sideEffects": false,
 	"description": "S3-compatible object storage client for Mana monorepo (MinIO)",
 	"main": "./dist/index.js",
 	"types": "./dist/index.d.ts",

packages/shared-theme/package.json

@@ -3,6 +3,7 @@
 	"version": "0.1.0",
 	"private": true,
 	"type": "module",
+	"sideEffects": false,
 	"svelte": "./src/index.ts",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",

packages/shared-types/package.json

@@ -2,6 +2,8 @@
 	"name": "@mana/shared-types",
 	"version": "0.1.0",
 	"private": true,
+	"type": "module",
+	"sideEffects": false,
 	"description": "Shared TypeScript types for Mana monorepo",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",

packages/shared-ui/package.json

@@ -3,6 +3,10 @@
 	"version": "0.1.0",
 	"private": true,
 	"type": "module",
+	"sideEffects": [
+		"**/*.svelte",
+		"**/*.css"
+	],
 	"svelte": "./src/index.ts",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",

packages/shared-utils/package.json

@@ -2,6 +2,7 @@
 	"name": "@mana/shared-utils",
 	"version": "0.1.0",
 	"private": true,
+	"sideEffects": false,
 	"description": "Shared utility functions for Mana monorepo",
 	"main": "./src/index.ts",
 	"types": "./src/index.ts",