docs: Update version to 1.0.1 and add changelog

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## [1.0.1] - 2025-09-06
+### Added
+- Implemented core modules from scratch based on design documents.
+- Implemented FastAPI server with `/process` endpoint (`src/crom_efficientllm/server.py`).
+- Added `enhanced_greedy_pack` with detailed statistics for budget packing (`src/crom_efficientllm/budget_packer.py`).
+- Implemented `SafeCrossEncoderManager` for robust and observable Cross-Encoder handling (`src/crom_efficientllm/cross_encoder.py`).
+- Added `ExplainCapsuleLogger` for structured JSONL logging of all processing events (`src/crom_efficientllm/capsule_logger.py`).
+
+### Changed
+- Major version bump to reflect the first functional implementation of core logic.
+
+
 ## [0.2.1] - 2025-09-02
 ### Added
 - CLI `--save-plots` option for `sweep` and `dp-curve`; saves PNG charts to `benchmarks/out/` (or `--out-dir`).

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "crom-efficientllm"
-version = "0.2.1"
+version = "1.0.1"
 description = "CRoM (Context Rot Mitigation)-EfficientLLM: Budget packing, hybrid rerank, and drift estimation with observability"
 readme = "README.md"
 requires-python = ">=3.9"