fix: Windows compatibility for hook scripts (execFileSync + tmux) (#215)

* fix: Windows compatibility for hook scripts

- post-edit-format.js: add `shell: process.platform === 'win32'` to
  execFileSync options so npx.cmd is resolved via cmd.exe on Windows
- post-edit-typecheck.js: same fix for tsc invocation via npx
- hooks.json: skip tmux-dependent hooks on Windows where tmux is
  unavailable (dev-server blocker and long-running command reminder)

On Windows, execFileSync('npx', ...) without shell:true fails with
ENOENT because Node.js cannot directly execute .cmd files. These
hooks silently fail on all Windows installations.

The tmux hooks unconditionally block dev server commands (exit 2) or
warn about tmux on Windows where tmux is not available.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: parse Claude Code JSONL transcript format correctly

The session-end hook expected user messages at entry.content, but
Claude Code's actual JSONL format nests them at entry.message.content.
This caused all session files to be blank templates (0 user messages
despite 136+ actual entries).

- Check entry.message?.content in addition to entry.content
- Extract tool_use blocks from assistant message.content arrays

Verified with Claude Code v2.1.41 JSONL transcripts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: ddungan <sckim@mococo.co.kr>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

hooks/hooks.json

@@ -7,7 +7,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{const i=JSON.parse(d);const cmd=i.tool_input?.command||'';if(/(npm run dev\\b|pnpm( run)? dev\\b|yarn dev\\b|bun run dev\\b)/.test(cmd)){console.error('[Hook] BLOCKED: Dev server must run in tmux for log access');console.error('[Hook] Use: tmux new-session -d -s dev \\\"npm run dev\\\"');console.error('[Hook] Then: tmux attach -t dev');process.exit(2)}}catch{}console.log(d)})\""
+            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{const i=JSON.parse(d);const cmd=i.tool_input?.command||'';if(process.platform!=='win32'&&/(npm run dev\\b|pnpm( run)? dev\\b|yarn dev\\b|bun run dev\\b)/.test(cmd)){console.error('[Hook] BLOCKED: Dev server must run in tmux for log access');console.error('[Hook] Use: tmux new-session -d -s dev \\\"npm run dev\\\"');console.error('[Hook] Then: tmux attach -t dev');process.exit(2)}}catch{}console.log(d)})\""
           }
         ],
         "description": "Block dev servers outside tmux - ensures you can access logs"
@@ -17,7 +17,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{const i=JSON.parse(d);const cmd=i.tool_input?.command||'';if(!process.env.TMUX&&/(npm (install|test)|pnpm (install|test)|yarn (install|test)?|bun (install|test)|cargo build|make\\b|docker\\b|pytest|vitest|playwright)/.test(cmd)){console.error('[Hook] Consider running in tmux for session persistence');console.error('[Hook] tmux new -s dev  |  tmux attach -t dev')}}catch{}console.log(d)})\""
+            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{const i=JSON.parse(d);const cmd=i.tool_input?.command||'';if(process.platform!=='win32'&&!process.env.TMUX&&/(npm (install|test)|pnpm (install|test)|yarn (install|test)?|bun (install|test)|cargo build|make\\b|docker\\b|pytest|vitest|playwright)/.test(cmd)){console.error('[Hook] Consider running in tmux for session persistence');console.error('[Hook] tmux new -s dev  |  tmux attach -t dev')}}catch{}console.log(d)})\""
           }
         ],
         "description": "Reminder to use tmux for long-running commands"