Add archify-vscode-ext skill: Archify diagrams and models for the Archify Diagram Viewer extension

Model tasks (validate, list, scaffold, resolve), diagram tasks (validate,
render), the bundled Archify 3.0.1 runtime and yaml parser under
scripts/vendor, references for authoring, formats and folders, and the
online-shop example model.

scripts/.scripts/suite/lib/--env-vars-reader.sh

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+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#   archify-vscode-ext Agent Skill (MIT)
+# -------------------------------------------------------------------------------------
+
+# CLI-only module: all input comes from flags. No environment variables are read.

scripts/.scripts/suite/lib/--env-vars-validator.sh

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+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#   archify-vscode-ext Agent Skill (MIT)
+# -------------------------------------------------------------------------------------
+
+# CLI-only module: nothing to validate.

scripts/.scripts/suite/lib/--index-api.sh

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+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#   archify-vscode-ext Agent Skill (MIT)
+# -------------------------------------------------------------------------------------
+
+. ./.scripts/suite/lib/-tests--run.sh

scripts/.scripts/suite/lib/--index.sh

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+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#   archify-vscode-ext Agent Skill (MIT)
+# -------------------------------------------------------------------------------------
+. ./.scripts/loggers/lib/--index.sh
+. ./.scripts/suite/lib/--env-vars-reader.sh
+. ./.scripts/suite/lib/--env-vars-validator.sh
+. ./.scripts/suite/lib/--index-api.sh

scripts/.scripts/suite/lib/-tests--run.sh

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+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#   archify-vscode-ext Agent Skill (MIT)
+# -------------------------------------------------------------------------------------
+
+# Runs every task against examples/online-shop and a scaffolded temp model.
+_suite__tests__run() {
+	node ./src/test/run.mjs "$@"
+}