docs(bf-26cfz): verify pdftract binary availability

notes/bf-26cfz.md

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+# bf-26cfz: Verify pdftract binary is built and available
+
+## Verification Summary
+
+**Status:** ✅ PASS - All acceptance criteria met
+
+### Acceptance Criteria Verification
+
+| Criterion | Status | Details |
+|-----------|--------|---------|
+| Binary exists in target/release or PATH | ✅ PASS | Binary exists at `/home/coding/pdftract/target/release/pdftract` |
+| Binary is executable | ✅ PASS | Permissions: `-rwxr-xr-x` (executable) |
+| Version/help command works | ✅ PASS | `pdftract --help` works correctly |
+| Build location documented | ✅ PASS | Documented below |
+
+## Binary Details
+
+- **Primary location:** `/home/coding/pdftract/target/release/pdftract`
+- **Size:** 18 MB
+- **Built:** Jul 5 19:53
+- **PATH link:** `/home/coding/.local/bin/pdftract` → `../../pdftract/target/release/pdftract` (symlink)
+
+## Available Commands
+
+The pdftract CLI supports the following commands:
+- `extract` - Extract text and structure from PDF files
+- `classify` - Classify document type
+- `inspect` - Inspect PDF in local web browser
+- `conformance` - Run SDK conformance test suite
+- `compare` - Compare actual vs expected results
+- `sdk` - SDK code generation
+- `mcp` - Start MCP server
+- `serve` - Start HTTP server
+- `validate` - Validate JSON against schema
+- `doctor` - Check environment health
+- Plus additional utility commands
+
+## Conclusion
+
+The pdftract binary is built, available in PATH, and fully functional. Ready for testing.