chore: bootstrap Anvil repo skeleton

First commit on feature/v0.1.0 establishes the Hellion Forge plugin
scaffold:

- .gitattributes: Linux-first LF defaults, Windows-script CRLF exceptions,
  binary markers for fonts / images / archives. Pre-empts the
  Forgeimizer pre-push hook crash that was caused by Asriels CRLF default.
- .editorconfig: Hellion Forge .NET conventions
  (private fields _camelCase, Allman braces, var-preferred).
- .gitignore: VisualStudio baseline + secrets bucket + Anvil.Tests
  excluded (build-suite lives in the local Hellion Build test repo).
- LICENSE: MIT, Hellion Online Media 2026.
- NOTICE.md: goodwill attribution to Craftimizer and clean-room
  anonymisation note.
- PRIVACY.md: zero-telemetry statement matching 00-Anvil-Scope.
- README.md: v0.1.0 status + planned-feature outline + custom-repo URL.
- Anvil.sln + Anvil/Anvil.csproj: Dalamud.NET.Sdk/15.0.0, x64 platform
  pinned (forge-wide rule), Microsoft.Extensions.Hosting stack closed-range
  pin to 10.0.7 matching HellionChat v1.5.0. No DalamudPackager.targets
  override - SDK 15 default packager handles images / icon / image_urls.
- Anvil/Anvil.yaml: plugin manifest with explicit icon_url / image_urls
  (top-level fields required for SDK 15 default packager) and a v0.1.0
  changelog entry that names RecipeData as the first module.

.gitattributes

@@ -0,0 +1,136 @@
+##############################################################
+##
+##   .gitattributes – Hellion Forge / Anvil
+##
+##   Setup:        Linux-First Development
+##                 (Hauptentwicklung auf Linux, Target = Dalamud/Windows)
+##   Überarbeitet: Mai 2026
+##
+##   Strategie:
+##     - Default:                Alles LF (Linux-Konvention)
+##     - Windows-Batch-Scripts:  CRLF (technische Pflicht!)
+##     - PowerShell:             CRLF (Sicherheit für Windows PS 5.1)
+##     - Binärdateien:           explizit markiert (gegen Korruption)
+##
+##############################################################
+
+
+# =====================================================
+# Default: Auto-Detect, alles auf LF normalisieren
+# =====================================================
+
+* text=auto eol=lf
+
+
+# =====================================================
+# Source Code (LF)
+# =====================================================
+
+*.cs            text eol=lf
+*.csx           text eol=lf
+
+
+# =====================================================
+# Configs & Daten (LF)
+# =====================================================
+
+*.json          text eol=lf
+*.yml           text eol=lf
+*.yaml          text eol=lf
+*.xml           text eol=lf
+*.md            text eol=lf
+*.txt           text eol=lf
+*.config        text eol=lf
+*.editorconfig  text eol=lf
+.gitignore      text eol=lf
+.gitattributes  text eol=lf
+
+
+# =====================================================
+# Visual Studio / MSBuild Project Files (LF)
+# =====================================================
+
+*.sln           text eol=lf
+*.csproj        text eol=lf
+*.props         text eol=lf
+*.targets       text eol=lf
+
+
+# =====================================================
+# Resources & Lokalisierung (LF)
+# =====================================================
+
+*.resx          text eol=lf
+*.resw          text eol=lf
+
+
+# =====================================================
+# Linux/Mac-Scripts (LF – Pflicht)
+# =====================================================
+
+*.sh            text eol=lf
+*.bash          text eol=lf
+*.zsh           text eol=lf
+
+
+# =====================================================
+# >>> AUSNAHMEN <<<
+# Windows-Scripts brauchen ZWINGEND CRLF.
+# =====================================================
+
+*.bat           text eol=crlf
+*.cmd           text eol=crlf
+
+*.ps1           text eol=crlf
+*.psm1          text eol=crlf
+*.psd1          text eol=crlf
+
+
+# =====================================================
+# Binäre Build-Artefakte
+# =====================================================
+
+*.dll           binary
+*.exe           binary
+*.pdb           binary
+*.so            binary
+*.dylib         binary
+*.nupkg         binary
+*.snupkg        binary
+
+
+# =====================================================
+# Bilder (binary)
+# =====================================================
+
+*.png           binary
+*.jpg           binary
+*.jpeg          binary
+*.gif           binary
+*.ico           binary
+*.bmp           binary
+*.tiff          binary
+*.webp          binary
+
+# SVG ist eigentlich XML – als Text behandeln
+*.svg           text eol=lf
+
+
+# =====================================================
+# Fonts (binary)
+# =====================================================
+
+*.ttf           binary
+*.otf           binary
+*.woff          binary
+*.woff2         binary
+
+
+# =====================================================
+# Archive (binary)
+# =====================================================
+
+*.zip           binary
+*.7z            binary
+*.tar           binary
+*.gz            binary