Switch remote deploy to vendored source builds

Move remote deployment to a vendored source bundle built on the target host via Docker so redeploys no longer require local cross-compilation or host Go installation.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

vendor/github.com/leaanthony/gosod/README.md

@@ -0,0 +1,105 @@
+<p align="center" style="text-align: center">
+   <img src="logo.png" width="50%"><br/>
+</p>
+
+<p align="center">
+	Scaffolding simplified<br/><br/>
+   <a href="https://github.com/leaanthony/gosod/blob/master/LICENSE"><img src="https://img.shields.io/badge/License-MIT-blue.svg"></a>
+   <a href="https://goreportcard.com/report/github.com/leaanthony/gosod"><img src="https://goreportcard.com/badge/github.com/leaanthony/gosod"/></a>
+   <a href="https://godoc.org/github.com/leaanthony/gosod"><img src="https://img.shields.io/badge/godoc-reference-blue.svg"/></a>
+   <a href="https://github.com/leaanthony/gosod/issues"><img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" /></a>
+   <a href="https://app.fossa.io/projects/git%2Bgithub.com%2Fleaanthony%2Fgosod?ref=badge_shield" alt="FOSSA Status"><img src="https://app.fossa.io/api/projects/git%2Bgithub.com%2Fleaanthony%2Fgosod.svg?type=shield"/></a>
+</p>
+
+
+Features:
+  - Scaffold out project directories from templates
+  - Uses Go's native templating engine
+  - Uses `fs.FS` for input, so it works well with `go:embed` and [debme](https://github.com/leaanthony/debme)
+  - Go alternative to [cookiecutter](https://github.com/cookiecutter/cookiecutter)
+
+## Installation 
+
+`go get github.com/leaanthony/gosod`
+
+## Usage
+
+  1. Define a template directory
+  2. Define some data
+  3. Extract to a target directory
+
+```go
+package main
+
+import (
+	"log"
+
+	"github.com/leaanthony/gosod"
+)
+
+type config struct {
+	Name string
+}
+
+
+// mytemplate/
+// ├── custom.filtername.txt
+// ├── ignored.txt
+// ├── subdir
+// │   ├── included.txt
+// │   └── sub.tmpl.go
+// └── test.tmpl.go
+//go:embed mytemplate/*
+var mytemplate embed.FS
+
+func main() {
+
+	// Define a new Template directory
+	basic, err := gosod.New(mytemplate)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Make some config data
+	myConfig := &config{
+		Name: "Mat",
+	}
+		
+	// Ignore files
+	basic.IgnoreFile("ignored.txt")
+	
+	// Custom template filters
+	basic.SetTemplateFilters([]string{ ".filtername", ".tmpl" })
+
+	// Create a new directory using the template and config
+	err = basic.Extract("./generated", myConfig)
+	if err != nil {
+		log.Fatal(err)
+	}
+	
+	// Ouput FS:
+	// generated/
+	// ├── custom.txt
+	// ├── subdir
+	// │   ├── included.txt
+	// │   └── sub.go
+	// └── test.go
+}
+```
+
+## Template Directories
+
+A template directory is simply a directory structure contianing files you wish to copy. The algorithm for copying is:
+
+  * Categorise all files into one of: directory, standard file and template files
+	* Create the directory structure
+	* Copy standard files
+	* Copy template files, assembled using the given data
+
+Template files, by default, are any file with ".tmpl" in their filename. To change this, use `SetTemplateFilters([]string)`. This allows you to set any number of filters.
+
+Files may also be ignored by using the `IgnoreFilename(string)` method.
+
+## What's with the name?
+
+Google is your [friend](https://translate.google.com/?sl=cy&tl=en&text=gosod&op=translate)