docs: drop stale rename callouts post GitHub repo rename

- README.md: remove "Repo rename is a manual step" callout — rename
  from docscontext → docsiq is now complete on github.com
- CLAUDE.md: drop stale claims that legacy ~/.docscontext/ config
  dir and DOCSCONTEXT_* env vars are still honored — both were
  removed in the greenfield rename (commit 5f... wave 1)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: aksOps

CLAUDE.md

@@ -45,8 +45,8 @@ internal/
 
 ## Config & Environment
 
-- Config dir: `~/.docsiq/` (legacy `~/.docscontext/` still honored for a deprecation window)
-- Env var prefix: `DOCSIQ_` (legacy `DOCSCONTEXT_` is auto-migrated in-process at startup and emits a deprecation warning)
+- Config dir: `~/.docsiq/`
+- Env var prefix: `DOCSIQ_`
 - Supports both `.yaml` and `.yml` config files
 
 ## Code Style

README.md

@@ -8,12 +8,6 @@
 [![Go Version](https://img.shields.io/github/go-mod/go-version/RandomCodeSpace/docsiq)](https://github.com/RandomCodeSpace/docsiq/blob/main/go.mod)
 [![Frontend Version](https://img.shields.io/badge/frontend-none-lightgrey)](https://github.com/RandomCodeSpace/docsiq)
 
-> **Repo rename:** the project was previously named `docscontext`. The local
-> checkout directory may still be `docscontext/`, but the Go module and
-> binary are now `docsiq`. The GitHub repo rename from `docscontext` to
-> `docsiq` is a manual step on github.com — badge/clone URLs above assume
-> it has been done.
-
 A GraphRAG tool inspired by [Microsoft GraphRAG](https://github.com/microsoft/graphrag). Built on CGO-backed SQLite ([`mattn/go-sqlite3`](https://github.com/mattn/go-sqlite3) with FTS5) plus the [`sqlite-vec`](https://github.com/asg017/sqlite-vec) loadable extension for ANN vector search.
 Ingests unstructured documents, builds a hierarchical knowledge graph with community detection, and exposes an **MCP server + embedded Web UI** on a single port.