Prepare Context 0.4.0

[TheCryptoDonkey]

Version 0.4.0 of @forgesworn/context and @forgesworn/context-tools: repository_explore and repository_coverage, literal search, compact text output by default, first-use index build, packet queueing, whole-file and clamped packets, range merging, declaration planning, BM25 retrieval ranking and smaller tool schemas. Details and evidence in RELEASE_EVIDENCE.md.

• Local checks from npm ci --ignore-scripts (Node 24.21.0): 451 tests, packed-package and navigation smoke, 22 scale tests, 10k postings probe; benchmark gates 37.93x and 356.2x with required-source recall 1.0.
• Tool-level walkthrough of the packed tarballs on an external repository (sindresorhus/ky).
• Measured benefit: none shown. The locked DeepSeek V4 Pro run did not meet its decision rule; no saving is claimed.
• Breaking for JSON consumers: search and packet output is compact text unless format: "json" is passed.

Tagging, GitHub release assets and npm publication are not part of this PR.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KzXbuBSq88i3Re82qt6c4L