Implement HTML domain checker in Rust and add PowerShell script for chunked execution

- Added a Rust program that reads a list of domains from "domains.txt", checks if they return HTML content, and writes valid domains to "domains-filtered.txt".
- Introduced a PowerShell script to execute a Python script in chunks, allowing for processing of specified line ranges from the domain list.

is-html-fast/.gitignore

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+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Generated by cargo mutants
+# Contains mutation testing data
+**/mutants.out*/
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+Icon[]
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk

is-html-fast/Cargo.toml

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+[package]
+name = "is-html-fast"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+rayon = "1.10.0"
+reqwest = { version = "0.12.19", features = ["blocking", "json"]}

is-html-fast/README.md

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+실제로 사용되진 않습니다.
+일회용 코드입니다.

is-html-fast/src/main.rs

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+use std::fs::{File, OpenOptions};
+use std::io::{BufRead, BufReader, Write};
+use std::sync::{Arc, Mutex};
+use std::time::Duration;
+
+use rayon::prelude::*;
+use reqwest::blocking::Client;
+use reqwest::header::CONTENT_TYPE;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let input_file = File::open("domains.txt")?;
+    let reader = BufReader::new(input_file);
+    let domains: Vec<String> = reader.lines().filter_map(Result::ok).collect();
+
+    let output_file = OpenOptions::new()
+        .create(true)
+        .write(true)
+        .truncate(true)
+        .open("domains-filtered.txt")?;
+
+    let output = Arc::new(Mutex::new(output_file));
+
+    let client = Arc::new(
+        Client::builder()
+            .timeout(Duration::from_secs(5))
+            .build()?,
+    );
+
+    domains.par_iter().for_each(|domain| {
+        let url = format!("https://{}", domain);
+        println!("Checking {}", url);
+
+        let response = client.get(&url).send();
+
+        match response {
+            Ok(resp) => {
+                if let Some(content_type) = resp.headers().get(CONTENT_TYPE) {
+                    if let Ok(content_type_str) = content_type.to_str() {
+                        if content_type_str.starts_with("text/html") {
+                            if let Ok(mut file) = output.lock() {
+                                writeln!(file, "{}", domain).ok();
+                            }
+                            println!("✅ HTML: {}", domain);
+                        } else {
+                            println!("❌ Not HTML: {} ({})", domain, content_type_str);
+                        }
+                    }
+                } else {
+                    println!("❌ No Content-Type: {}", domain);
+                }
+            }
+            Err(_) => {
+                println!("⚠️ Failed to connect: {}", domain);
+            }
+        }
+    });
+
+    Ok(())
+}