chore(release): Prepare v0.12.0

Consolidate all changes since v0.11.0 into v0.12.0 release:
- Zero-score filtering for god objects and all queries
- Compare command input type fixes
- Test caller filtering for production blast radius
- Score dampening for well-tested stable cores
- MSRV bump to 1.89
- Dependency compatibility fixes (tokio 1.21+)
- CI dependency updates

Author: iepathos

CHANGELOG.md

@@ -7,10 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [0.12.1] - 2025-01-11
+## [0.12.0] - 2026-01-13
 
 ### Fixed
 
+- **Zero-Score Filtering** - Items with zero score are now properly excluded from results
+  - God objects with zero score no longer appear in output
+  - All query types now correctly exclude zero-score items
+  - Prevents noise from non-actionable debt items
+
+- **Compare Command Input Types** - Fixed input parsing to use output format types
+  - Compare command now correctly parses JSON input files
+  - Improved type consistency between output and input formats
+
 - **Test Caller Filtering for Production Blast Radius** (Spec 267)
   - Fixed path-based test attribute detection (`#[tokio::test]`, `#[actix_rt::test]`)
     - `syn::Path::is_ident()` only matches single identifiers, not paths
@@ -37,6 +46,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Result: Well-tested stable files no longer flagged as high-priority debt
     - Example: overflow.rs (74 test / 16 production callers) now scores 10 (Low) instead of 50 (High)
 
+- **Dependency Compatibility**
+  - Set minimum tokio version to 1.21 for `JoinSet` support
+  - Ensures compatibility with async runtime features
+
+### Changed
+
+- **MSRV Bump to 1.89** - Updated minimum supported Rust version to match toolchain
+  - Aligns with current stable Rust features
+  - Enables use of newer language features
+
+### Infrastructure
+
+- Updated `actions/setup-python` from v5 to v6
+- Updated `github/codeql-action` from v3 to v4
+
 ## [0.11.0] - 2025-12-20
 
 ### Added

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "debtmap"
-version = "0.12.1"
+version = "0.12.0"
 edition = "2021"
 rust-version = "1.89"
 authors = ["Glen Baker <[email protected]>"]