fix: restore HWPX package graph and render-fidelity proof chain

Cargo.toml

@@ -34,7 +34,7 @@ snafu = "0.9.0"
 strum = { version = "0.28.0", default-features = false, features = ["derive"] }
 unicode-segmentation = "1.12.0"
 unicode-width = "0.2.2"
-image = { version = "0.25", default-features = false, features = ["bmp", "jpeg", "png"] }
+image = { version = "0.25", default-features = false, features = ["bmp", "jpeg", "png", "tiff"] }
 pcx = "0.2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
@@ -62,6 +62,7 @@ web-sys = { version = "0.3", features = [
     "CanvasPattern",
     "HtmlCanvasElement",
     "HtmlImageElement",
+    "ImageData",
     "TextMetrics",
     "Document",
     "Window",

examples/diag_blank_pages.rs

@@ -0,0 +1,138 @@
+//! 진단: HWPX/HWP 본문 페이지에 본문 1줄만 배치되고 거대한 빈 공간이 생기는
+//! "near-blank page" 결함을 네이티브로 재현한다.
+//!
+//! WASM 바인딩 `pageCount`/`getPageTextLayout`/`getPageFootnoteInfo` 가 호출하는
+//! 동일 내부 경로(`DocumentCore`)를 직접 호출한다.
+//!
+//! 사용: `cargo run --release --example diag_blank_pages -- <file.hwpx> [from] [to]`
+//!   기본 출력 범위: 0-indexed page 8..=20.
+
+use rhwp::wasm_api::HwpDocument;
+use std::env;
+use std::fs;
+
+fn main() {
+    let args: Vec<String> = env::args().skip(1).collect();
+    if args.is_empty() {
+        eprintln!(
+            "사용: cargo run --release --example diag_blank_pages -- <file.hwpx> [from] [to]"
+        );
+        std::process::exit(1);
+    }
+    let file = &args[0];
+
+    // --coltype <sec> <from_para> <to_para>: 문단별 column_type/page_break_before/텍스트 덤프
+    // (강제 쪽나누기 속성 검증용 — orphan break 의 원인 분류).
+    if args.get(1).map(|s| s == "--coltype").unwrap_or(false) {
+        let sec: usize = args.get(2).and_then(|s| s.parse().ok()).unwrap_or(1);
+        let from_p: usize = args.get(3).and_then(|s| s.parse().ok()).unwrap_or(0);
+        let to_p: usize = args.get(4).and_then(|s| s.parse().ok()).unwrap_or(60);
+        let data = fs::read(file).expect("read file");
+        let doc = HwpDocument::from_bytes(&data).expect("parse document");
+        let dpi = 96.0_f64;
+        let styles = rhwp::renderer::style_resolver::resolve_styles(&doc.document().doc_info, dpi);
+        let section = &doc.document().sections[sec];
+        println!(
+            "sec {} paragraphs (col_type / page_break_before / text)",
+            sec
+        );
+        for (pi, p) in section.paragraphs.iter().enumerate() {
+            if pi < from_p || pi > to_p {
+                continue;
+            }
+            let pbb = styles
+                .para_styles
+                .get(p.para_shape_id as usize)
+                .map(|s| s.page_break_before)
+                .unwrap_or(false);
+            let text: String = p.text.chars().take(28).collect();
+            println!(
+                "pi={:>4} col_type={:?} pbb={} lines={} ctrls={} text={:?}",
+                pi,
+                p.column_type,
+                pbb,
+                p.line_segs.len(),
+                p.controls.len(),
+                text.trim()
+            );
+        }
+        return;
+    }
+
+    let from: u32 = args.get(1).and_then(|s| s.parse().ok()).unwrap_or(8);
+    let to: u32 = args.get(2).and_then(|s| s.parse().ok()).unwrap_or(20);
+
+    let data = fs::read(file).expect("read file");
+    let doc = HwpDocument::from_bytes(&data).expect("parse document");
+
+    let total = doc.page_count();
+    println!("file: {}", file);
+    println!("TOTAL PAGES: {}", total);
+    println!(
+        "{:>4} | {:>3} | {:>9} | {:>9} | {:>9} | {:>7} | {:>7} | {:>7} | {:>7}",
+        "page",
+        "sec",
+        "bodyLines",
+        "bodyMinY",
+        "bodyMaxY",
+        "fnLines",
+        "fnCount",
+        "paraMin",
+        "paraMax"
+    );
+
+    let end = to.min(total.saturating_sub(1));
+    for page in from..=end {
+        match doc.diag_page_layout_native(page) {
+            Ok(json) => {
+                let sec = extract_int(&json, "sectionIdx");
+                let body_lines = extract_int(&json, "bodyLines");
+                let body_min = extract_f64(&json, "bodyMinY");
+                let body_max = extract_f64(&json, "bodyMaxY");
+                let fn_lines = extract_int(&json, "footnoteLines");
+                let fn_count = extract_int(&json, "footnoteCount");
+                let para_min = extract_int(&json, "paraMin");
+                let para_max = extract_int(&json, "paraMax");
+                println!(
+                    "{:>4} | {:>3} | {:>9} | {:>9.1} | {:>9.1} | {:>7} | {:>7} | {:>7} | {:>7}",
+                    page,
+                    sec,
+                    body_lines,
+                    body_min,
+                    body_max,
+                    fn_lines,
+                    fn_count,
+                    para_min,
+                    para_max
+                );
+            }
+            Err(e) => {
+                println!("{:>4} | ERROR: {:?}", page, e);
+            }
+        }
+    }
+}
+
+/// 미니 JSON 정수 추출: `"key":<int>` 패턴.
+fn extract_int(json: &str, key: &str) -> i64 {
+    extract_raw(json, key)
+        .and_then(|s| s.trim().parse::<i64>().ok())
+        .unwrap_or(-1)
+}
+
+/// 미니 JSON 실수 추출.
+fn extract_f64(json: &str, key: &str) -> f64 {
+    extract_raw(json, key)
+        .and_then(|s| s.trim().parse::<f64>().ok())
+        .unwrap_or(f64::NAN)
+}
+
+fn extract_raw(json: &str, key: &str) -> Option<String> {
+    let needle = format!("\"{}\":", key);
+    let start = json.find(&needle)? + needle.len();
+    let rest = &json[start..];
+    let end = rest
+        .find(|c: char| c == ',' || c == '}')
+        .unwrap_or(rest.len());
+    Some(rest[..end].to_string())
+}

rhwp-studio/src/core/font-loader.ts

@@ -64,6 +64,15 @@ const FONT_LIST: FontEntry[] = [
   // Haansoft Dotum: HWP 문서가 직접 지정하는 한컴 돋움 영문명(예: 수능 모의고사 본문).
   // 기존 미등록 → 체인의 'Malgun Gothic'(Pretendard) 가 먼저 매칭되어 굵게 렌더됐다.
   { name: 'Haansoft Dotum', file: 'fonts/NotoSansKR-ExtraLight.woff2' },
+  { name: 'KoPub돋움체 Light', file: 'fonts/NotoSansKR-ExtraLight.woff2' },
+  { name: 'KoPub Dotum Light', file: 'fonts/NotoSansKR-ExtraLight.woff2' },
+  { name: 'KoPubWorld돋움체 Light', file: 'fonts/NotoSansKR-ExtraLight.woff2' },
+  { name: 'KoPub바탕체 Light', file: 'fonts/NotoSerifKR-Regular.woff2' },
+  { name: 'KoPub바탕체 Medium', file: 'fonts/NotoSerifKR-Regular.woff2' },
+  { name: 'KoPub바탕체 Bold', file: 'fonts/NotoSerifKR-Bold.woff2' },
+  { name: 'KoPub Batang Light', file: 'fonts/NotoSerifKR-Regular.woff2' },
+  { name: 'KoPub Batang Medium', file: 'fonts/NotoSerifKR-Regular.woff2' },
+  { name: 'KoPub Batang Bold', file: 'fonts/NotoSerifKR-Bold.woff2' },
   { name: '바탕', file: 'fonts/NotoSerifKR-Regular.woff2' },
   { name: '바탕체', file: 'fonts/D2Coding-Regular.woff2' },
   { name: '궁서', file: 'fonts/GowunBatang-Regular.woff2' },