fix: complete bundle export architecture for all entry points

  Two related fixes to ensure all export bundles are complete and correctly sized:

  1. s5/advanced: Now properly re-exports all core functionality (S5, FS5,
     DirectoryWalker, BatchOperations) plus advanced CID operations. Previously
     missing core classes, making it incorrectly smaller than s5/core.

  2. s5 (main): Now includes FS5Advanced and CID utilities (formatCID, parseCID,
     verifyCID, cidToString) for truly complete "full" bundle. Previously
     missing advanced features.

  Bundle sizes (brotli):
  - Core: 59.58 KB (baseline - fs operations only)
  - Advanced: 60.60 KB (core + CID utils)
  - Full: 61.14 KB (core + media + CID utils - complete)

  All bundles remain well under 700 KB grant requirement (638.86 KB margin).

  Fixes: Users can now import all features from a single entry point, and
  bundle sizes follow logical hierarchy (Core < Advanced < Full).

Author: Developer

docs/BUNDLE_ANALYSIS.md

@@ -1,6 +1,6 @@
 # S5.js Bundle Analysis Report
 
-**Generated:** 2025-10-27T14:13:58.864Z
+**Generated:** 2025-10-27T15:42:51.850Z
 
 ## Executive Summary
 
@@ -13,17 +13,17 @@ This report analyzes bundle sizes for different entry points of the S5.js librar
 | Core | 214.78 KB | 71.77 KB | 59.58 KB | ✅ Pass |
 | Media | 35.98 KB | 11.03 KB | 9.79 KB | ✅ Pass |
 | Advanced | 218.69 KB | 72.90 KB | 60.60 KB | ✅ Pass |
-| Full | 217.21 KB | 72.39 KB | 60.12 KB | ✅ Pass |
+| Full | 221.12 KB | 73.48 KB | 61.14 KB | ✅ Pass |
 
 ## Tree-Shaking Analysis
 
 The modular export structure enables consumers to import only what they need:
 
 - **Core only:** 59.58 KB (excludes media processing)
 - **Media only:** 9.79 KB (media processing modules)
-- **Full bundle:** 60.12 KB (all features)
+- **Full bundle:** 61.14 KB (all features)
 - **Combined (Core + Media):** 69.37 KB
-- **Shared code savings:** 9.25 KB (13.3% efficiency)
+- **Shared code savings:** 8.23 KB (11.9% efficiency)
 
 ## Detailed Breakdown
 
@@ -79,17 +79,17 @@ The modular export structure enables consumers to import only what they need:
 **Entry Point:** `dist/src/index.js`
 
 **Sizes:**
-- Raw: 217.21 KB
-- Gzipped: 72.39 KB (33.3% of raw)
-- Brotli: 60.12 KB (27.7% of raw)
+- Raw: 221.12 KB
+- Gzipped: 73.48 KB (33.2% of raw)
+- Brotli: 61.14 KB (27.6% of raw)
 
 **Metadata:**
-- Input files: 295
+- Input files: 297
 - Output modules: 1
 
 ## Recommendations
 
-✅ **Full bundle size is within the 700KB limit** (60.12 KB)
+✅ **Full bundle size is within the 700KB limit** (61.14 KB)
 
 ### For Application Developers:
 
@@ -115,9 +115,9 @@ The modular export structure enables consumers to import only what they need:
 
 **Status:** ✅ **COMPLIANT**
 
-- Full bundle (brotli): 60.12 KB
+- Full bundle (brotli): 61.14 KB
 - Target: 700 KB
-- Margin: 639.88 KB under budget
+- Margin: 638.86 KB under budget
 
 ## Technical Implementation
 

docs/bundle-analysis.json

@@ -1,5 +1,5 @@
 {
-  "timestamp": "2025-10-27T14:13:58.865Z",
+  "timestamp": "2025-10-27T15:42:51.851Z",
   "bundles": [
     {
       "name": "Core",
@@ -48,27 +48,27 @@
       "description": "Complete SDK with all features",
       "entryPoint": "dist/src/index.js",
       "sizes": {
-        "raw": 222424,
-        "gzipped": 74124,
-        "brotli": 61567
+        "raw": 226428,
+        "gzipped": 75247,
+        "brotli": 62607
       },
       "metadata": {
-        "inputs": 295,
+        "inputs": 297,
         "modules": 1
       }
     }
   ],
   "treeShaking": {
     "coreSize": 61008,
     "mediaSize": 10028,
-    "fullSize": 61567,
+    "fullSize": 62607,
     "combined": 71036,
-    "savings": 9469,
-    "efficiency": 13.329860915592096
+    "savings": 8429,
+    "efficiency": 11.865814516583141
   },
   "compliance": {
     "target": 716800,
-    "actual": 61567,
+    "actual": 62607,
     "status": true
   }
 }

src/index.ts

@@ -11,6 +11,10 @@ export { JSCryptoImplementation } from './api/crypto/js.js';
 export { DirectoryWalker } from './fs/utils/walker.js';
 export { BatchOperations } from './fs/utils/batch.js';
 
+// Export advanced CID-aware API
+export { FS5Advanced } from './fs/fs5-advanced.js';
+export { formatCID, parseCID, verifyCID, cidToString } from './fs/cid-utils.js';
+
 // Export media processing classes
 export { MediaProcessor } from './media/index.js';
 export { CanvasMetadataExtractor } from './media/fallback/canvas.js';
@@ -24,6 +28,8 @@ export type {
   FileRef,
   DirRef,
   DirLink,
+  BlobLocation,
+  HAMTShardingConfig,
   PutOptions,
   GetOptions,
   ListOptions,