chore: bump version to 1.0.1

Co-Authored-By: Claude Opus 4.6 <[email protected]>

fix: hash reference lookup failures with Codex models

Four fixes for "Hash reference not found" errors:

1. Normalize hash refs — trim whitespace, strip trailing "|",
   handle spaces around ":" (models may format refs loosely)

2. Line truncation consistency — computeFileHashes now truncates
   lines >2000 chars before hashing, matching OpenCode's read tool
   output. Previously produced different hashes for long lines.

3. Recompute hashes after edits — instead of clearing, recompute
   from the new file content so subsequent stale-ref errors show
   "line N now has hash X" instead of generic "not found"

4. Diagnostic error messages — when hash isn't found, shows what
   hash IS at that line number (or that the line doesn't exist),
   helping the model recover by re-reading

Also adds explicit system prompt guidance on hash ref format
("copy exactly, don't include | separator").

Co-Authored-By: Claude Opus 4.6 <[email protected]>

feat: multi-edit support for edit tool (Anthropic models)

The edit tool now accepts an `edits` array, allowing multiple edits
in a single call (same file). Edits are applied bottom-to-top to
avoid offset issues. Both edit and apply_patch now share the same
edits array interface for consistency.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

feat: multi-file edit support for apply_patch (Codex)

The apply_patch tool now accepts an `edits` array for batching
multiple file edits in a single call. Edits to the same file are
grouped into one *** Update File section with multiple @@ chunks,
sorted by line number for correct sequential application.

- Separate schemas: edit (single-file) vs apply_patch (multi-file)
- Separate descriptions per tool
- Hash invalidation tracks all edited files per patch

Co-Authored-By: Claude Opus 4.6 <[email protected]>

feat: add apply_patch support for Codex models

Hashline now hooks both `edit` (Anthropic) and `apply_patch` (Codex).
For Codex models, hash references are resolved into generated patchText
using the *** Begin Patch format with @@ context lines.

Same three operations work for both tools:
- Replace line (startHash)
- Replace range (startHash + endHash)
- Insert after (afterHash)

Co-Authored-By: Claude Opus 4.6 <[email protected]>

feat: auto-configure plugin on install via postinstall script

Adds a postinstall script that automatically adds open-hashline to
.opencode/opencode.json so it works out of the box after npm install.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

feat: make package npm-installable and update installation docs

- Add description, repository, keywords, author, homepage, bugs to package.json
- Move @opencode-ai/plugin to peerDependencies
- Add files field to control published package contents
- Add npm/bun install option to README

Co-Authored-By: Claude Opus 4.6 <[email protected]>