Docs update from nexus-sdk (#71)

* Update docs from nexus-sdk (commit: 64b62817ffad5fffaf97bcd9affc8f64257f7728)

* undo broken link

* update SUMMARY

* update workflow branch to staging

---------

Co-authored-by: afarukcali <[email protected]>
Co-authored-by: Thomas Dekeyser <[email protected]>

Author: 3 people

.github/workflows/add_new_files_summary.yml

@@ -3,7 +3,7 @@ name: Update SUMMARY.md on PR
 on:
   pull_request:
     branches:
-      - main
+      - staging
     types: [opened, synchronize, reopened]
 permissions:
   contents: write

SUMMARY.md

@@ -69,3 +69,4 @@
   * [Math](tools/math/README.md)
   * [LLM: OpenAI Chat Completion](tools/llm-openai-chat-completion/README.md)
   * [Social : X](tools/social-twitter/README.md)
+  * [Storage: Walrus](tools/storage-walrus/README.md)

tools/storage-walrus/README.md

@@ -0,0 +1,56 @@
+# `xyz.taluslabs.storage.walrus.upload-json`
+
+Standard Nexus Tool that uploads a JSON file to Walrus and returns the blob ID.
+
+## Input
+
+**`json`: [`String`]**
+
+The JSON data to upload.
+
+_opt_ **`publisher_url`: [`Option<String>`]** _default_: [`None`]
+
+The walrus publisher URL.
+
+_opt_ **`aggregator_url`: [`Option<String>`]** _default_: [`None`]
+
+The URL of the Walrus aggregator to upload the JSON to.
+
+_opt_ **`epochs`: [`u64`]** _default_: [`1`]
+
+Number of epochs to store the data.
+
+_opt_ **`send_to_address`: [`Option<String>`]** _default_: [`None`]
+
+Optional address to which the created Blob object should be sent.
+
+## Output Variants & Ports
+
+**`newly_created`**
+
+A new blob was created and uploaded successfully.
+
+- **`newly_created.blob_id`: [`String`]** - The unique identifier for the uploaded blob
+- **`newly_created.end_epoch`: [`u64`]** - The epoch at which the blob will expire
+- **`newly_created.sui_object_id`: [`String`]** - Sui object ID of the newly created blob
+
+**`already_certified`**
+
+The blob was already certified in the blockchain.
+
+- **`already_certified.blob_id`: [`String`]** - The unique identifier for the blob
+- **`already_certified.end_epoch`: [`u64`]** - The epoch at which the blob will expire
+- **`already_certified.tx_digest`: [`String`]** - Transaction digest of the certified blob
+
+**`err`**
+
+The blob upload failed.
+
+- **`err.reason`: [`String`]** - A detailed error message describing what went wrong
+- **`err.kind`: [`UploadErrorKind`]** - Type of error that occurred
+  - Possible kinds:
+    - `network` - Error during HTTP requests or network connectivity issues
+    - `validation` - Invalid JSON input or data validation failures
+- **`err.status_code`: [`Option<u16>`]** - HTTP status code if available (for network errors)
+
+---