feat: v0.1.4 — QuickJS integration for inline JavaScript data extraction

Embeds QuickJS (rquickjs) to execute inline <script> tags and extract
data hidden in JavaScript variable assignments. Captures window.__*
objects like __preloadedData (NYTimes), __PRELOADED_STATE__ (Wired),
and self.__next_f (Next.js RSC flight data).

Results:
- NYTimes: 1,552 → 4,162 words (+168%)
- Wired: 1,459 → 9,937 words (+580%)
- Zero measurable performance overhead (<15ms per page)
- Feature-gated: disable with --no-default-features for WASM

Smart text filtering rejects CSS, base64, file paths, code strings.
Only readable prose is appended under "## Additional Content".

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Cargo.lock

@@ -1932,6 +1932,33 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "rquickjs"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c5227859c4dfc83f428e58f9569bf439e628c8d139020e7faff437e6f5abaa0"
+dependencies = [
+ "rquickjs-core",
+]
+
+[[package]]
+name = "rquickjs-core"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e82e0ca83028ad5b533b53b96c395bbaab905a5774de4aaf1004eeacafa3d85d"
+dependencies = [
+ "rquickjs-sys",
+]
+
+[[package]]
+name = "rquickjs-sys"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fed0097b0b4fbb2a87f6dd3b995a7c64ca56de30007eb7e867dfdfc78324ba5"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "2.1.1"
@@ -2854,7 +2881,7 @@ dependencies = [
 
 [[package]]
 name = "webclaw-cli"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "clap",
  "dotenvy",
@@ -2874,11 +2901,12 @@ dependencies = [
 
 [[package]]
 name = "webclaw-core"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "ego-tree",
  "once_cell",
  "regex",
+ "rquickjs",
  "scraper",
  "serde",
  "serde_json",
@@ -2891,7 +2919,7 @@ dependencies = [
 
 [[package]]
 name = "webclaw-fetch"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "primp",
  "quick-xml",
@@ -2909,7 +2937,7 @@ dependencies = [
 
 [[package]]
 name = "webclaw-llm"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "async-trait",
  "reqwest",
@@ -2922,7 +2950,7 @@ dependencies = [
 
 [[package]]
 name = "webclaw-mcp"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "dotenvy",
  "reqwest",
@@ -2942,7 +2970,7 @@ dependencies = [
 
 [[package]]
 name = "webclaw-pdf"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "pdf-extract",
  "thiserror",