(skywalking-banyandb) 04/05: Update TODO.md to mark completion of block initialization tasks and associated implementation details

[hanahmily]

This is an automated email from the ASF dual-hosted git repository.

hanahmily pushed a commit to branch sidx/write
in repository https://gitbox.apache.org/repos/asf/skywalking-banyandb.git

commit c43de97b7b07bc88aad5138435cb71e70c93ad51
Author: Gao Hongtao <hanahm...@gmail.com>
AuthorDate: Wed Aug 20 21:34:06 2025 +0700

    Update TODO.md to mark completion of block initialization tasks and 
associated implementation details
---
 banyand/internal/sidx/TODO.md | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/banyand/internal/sidx/TODO.md b/banyand/internal/sidx/TODO.md
index d064db43..2deadf6a 100644
--- a/banyand/internal/sidx/TODO.md
+++ b/banyand/internal/sidx/TODO.md
@@ -238,22 +238,22 @@ This document tracks the implementation progress of the 
Secondary Index File Sys
   - [x] Edge cases (empty, single element, duplicate keys)
 
 ### 4.4 Block Initialization (`block.go` methods) 🔥 - DESIGN COMPLETED ✅
-- [ ] **Complete block initialization design added to DESIGN.md**
-- [ ] **mustInitFromElements()**: Process sorted elements into blocks
-- [ ] **mustInitFromTags()**: Process tag data for blocks
-- [ ] **processTag()**: Create tag data structures with bloom filters
-- [ ] **Key validation**: Verify sorting and consistency
-- [ ] **Tag optimization**: Bloom filters for indexed tags, min/max for int64 
tags
-- [ ] **Implementation Tasks**:
-  - [ ] Implement mustInitFromElements() with element processing
-  - [ ] Add mustInitFromTags() for tag data organization
-  - [ ] Create processTag() with bloom filter generation
-  - [ ] Add validation for element ordering
-- [ ] **Test Cases**:
-  - [ ] Block building from various element configurations
-  - [ ] Validation errors for unsorted elements
-  - [ ] Edge cases (empty elements, single series)
-  - [ ] Memory usage during block initialization
+- [x] **Complete block initialization design added to DESIGN.md**
+- [x] **mustInitFromElements()**: Process sorted elements into blocks
+- [x] **mustInitFromTags()**: Process tag data for blocks
+- [x] **processTag()**: Create tag data structures with bloom filters
+- [x] **Key validation**: Verify sorting and consistency
+- [x] **Tag optimization**: Bloom filters for indexed tags, min/max for int64 
tags
+- [x] **Implementation Tasks**:
+  - [x] Implement mustInitFromElements() with element processing
+  - [x] Add mustInitFromTags() for tag data organization
+  - [x] Create processTag() with bloom filter generation
+  - [x] Add validation for element ordering
+- [x] **Test Cases**:
+  - [x] Block building from various element configurations
+  - [x] Validation errors for unsorted elements
+  - [x] Edge cases (empty elements, single series)
+  - [x] Memory usage during block initialization
 
 ---