Rebuild as a dependency-free static installer

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: Something in the web installer isn't working as expected
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting a problem! Flashing issues in particular are much easier to
+        diagnose with concrete details - please fill in as much of this as you can.
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: A clear description of the bug, including what you expected to happen instead.
+      placeholder: Tell us what you saw...
+    validations:
+      required: true
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      placeholder: |
+        1. Go to '...'
+        2. Select version '...'
+        3. Select variant/flash size '...'
+        4. Click 'Install' and ...
+        5. See error
+    validations:
+      required: true
+  - type: dropdown
+    id: chip
+    attributes:
+      label: Chip
+      options:
+        - ESP32
+        - ESP32-S3
+        - ESP32-C3
+        - ESP32-S2
+        - ESP8266
+        - Other / not sure
+    validations:
+      required: false
+  - type: input
+    id: board-model
+    attributes:
+      label: Specific board (if known)
+      placeholder: e.g. LilyGO T7-S3, Wemos D1 Mini, generic N16R8 devkit, Adafruit MatrixPortal S3...
+  - type: dropdown
+    id: variant
+    attributes:
+      label: Variant selected
+      options:
+        - Plain
+        - Audioreactive
+        - Ethernet
+        - ESP8266 CPU Frequency Test
+        - ESP32 V4
+        - DEBUG
+        - HUB75 Matrix
+        - Not sure
+    validations:
+      required: false
+  - type: input
+    id: flash-size
+    attributes:
+      label: Flash size (or HUB75 layout) selected
+      placeholder: e.g. 8MB, or "Adafruit MatrixPortal S3"
+  - type: input
+    id: wled-version
+    attributes:
+      label: WLED version you tried to install
+      placeholder: e.g. 16.0.1, nightly...
+  - type: input
+    id: browser
+    attributes:
+      label: Browser + OS
+      placeholder: e.g. Chrome 126 on Windows 11
+    validations:
+      required: true
+  - type: textarea
+    id: console
+    attributes:
+      label: Browser console output (if any)
+      description: Open DevTools (F12) -> Console before/while reproducing, and paste any errors here.
+      render: shell
+  - type: textarea
+    id: serial-log
+    attributes:
+      label: Serial/boot log (if the device fails to boot or loops after flashing)
+      description: If you can capture it with a serial monitor, paste the boot log here.
+      render: shell
+  - type: textarea
+    id: additional
+    attributes:
+      label: Anything else?

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: WLED firmware issues
+    url: https://github.com/wled/WLED/issues
+    about: Report bugs in WLED itself (not this web installer) here.
+  - name: WLED documentation
+    url: https://kno.wled.ge
+    about: Usage questions, setup guides, and general WLED knowledge base.

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature request
+description: Suggest an idea or improvement for the web installer
+title: "[Feature]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for the suggestion! Please describe what you'd like to see and why.
+  - type: textarea
+    id: problem
+    attributes:
+      label: What problem would this solve?
+      description: Is this related to something you ran into, or a board/workflow that isn't well supported today?
+      placeholder: e.g. "I couldn't find a way to..."
+  - type: textarea
+    id: solution
+    attributes:
+      label: Describe the solution you'd like
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives you've considered
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional context
+      description: Screenshots, links, related boards/chips/WLED variants, etc.

README.md

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-# WLED-WebFlasher
-WLED web flasher using the Web Serial API, powered by ESPHome Web
+# WLED Web Installer
+
+A static, GitHub-Pages-friendly web installer for [WLED](https://github.com/wled/WLED), built on
+[ESP Web Tools](https://esphome.github.io/esp-web-tools/).
+
+No build step and no server component: `index.html` fetches the release list straight from the
+GitHub Releases API at page-load time and generates an install manifest on the fly for whichever
+version / variant / flash size combination the user picks.
+
+## Features
+
+- Always up to date - versions come live from the [wled/WLED releases](https://github.com/wled/WLED/releases) API, no manual manifest maintenance.
+- Variant selection (Plain, Audioreactive, Ethernet, ESP8266 CPU frequency test, ESP32 V4, DEBUG, HUB75 Matrix) - unavailable variants for the selected version are hidden automatically.
+- Flash size selection (1MB / 2MB / 4MB / 8MB / 16MB) for boards that ship multiple binaries (ESP32-S3, ESP8266) - unavailable sizes for the selected version/variant are hidden automatically.
+- HUB75 layout selection (board/pinout picker) when the HUB75 Matrix variant is selected.
+- Multi-language UI, loaded dynamically from `lang/` - see [Localization](#localization).
+
+## Local development
+
+Any static file server works, e.g.:
+
+```bash
+npx serve .
+```
+
+Then open the printed local URL in Chrome or Edge (Web Serial is required).
+
+## Deploying
+
+Push to a repository and enable GitHub Pages for it (Settings -> Pages -> Deploy from branch).
+No build step is required - the repository root is the site.
+
+## Localization
+
+`lang/languages.json` maps each supported language code to its display name, and
+`lang/<code>.json` holds that language's strings. Both are fetched at runtime - `i18n.js` never
+hardcodes a language list.
+
+To add a language:
+
+1. Copy `lang/en.json` to `lang/<code>.json` (e.g. `lang/de.json`) and translate the values.
+2. Add one line to `lang/languages.json`: `"<code>": "<Native display name>"`.
+
+That's it - the language selector and every `data-i18n` element on the page pick it up on next
+load, no code changes required. Missing keys in a translation silently fall back to English.
+
+## Files
+
+- `index.html`, `style.css` - page markup/styling.
+- `app.js` - release fetching, manifest generation, UI wiring.
+- `i18n.js` - loads `lang/` and applies translations.
+- `lang/` - one JSON file per language, plus `languages.json` listing them.
+- `bin/boot/` - chip bootloaders and partition tables needed to flash bare chips (WLED release assets only contain the application binary).
+
+## License
+
+MIT, see `LICENSE`.