Refactor repository. Fixes #2161 (#2192)

* Remove duplicate LICENSE.
* Remove un-userd pyscript.sw directory and its content.
* Remove ReadTheDocs settings (unused).
* Remove un-used pyproject.toml
* Remove now unused CHANGELOG. Changes now tracked via release notes on GitHub.
* Updated / cleaned release page template and associated GH actions.
* Update prettierignore to remove un-needed refs.
* Move troubleshooting into correct README.
* Add reason for the index.html
* Rename the "pyscript.core" directory to "core".
* Update PR template because CHANGELOG is no longer used.
* Codespell configuration in pyproject.toml.
* Update pyscript.core -> core in .githubignore
* Remove test-results/.last-run.json. This should be ignored by git.
* Pin nodejs version.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

core/src/hooks.js

@@ -0,0 +1,105 @@
+import { typedSet } from "type-checked-collections";
+import { dedent } from "polyscript/exports";
+import toJSONCallback from "to-json-callback";
+
+import { stdlib, optional } from "./stdlib.js";
+
+export const main = (name) => hooks.main[name];
+export const worker = (name) => hooks.worker[name];
+
+const code = (hooks, branch, key, lib) => {
+    hooks[key] = () => {
+        const arr = lib ? [lib] : [];
+        arr.push(...branch(key));
+        return arr.map(dedent).join("\n");
+    };
+};
+
+export const codeFor = (branch, type) => {
+    const pylib = type === "mpy" ? stdlib.replace(optional, "") : stdlib;
+    const hooks = {};
+    code(hooks, branch, `codeBeforeRun`, pylib);
+    code(hooks, branch, `codeBeforeRunAsync`, pylib);
+    code(hooks, branch, `codeAfterRun`);
+    code(hooks, branch, `codeAfterRunAsync`);
+    return hooks;
+};
+
+export const createFunction = (self, name) => {
+    const cbs = [...worker(name)];
+    if (cbs.length) {
+        const cb = toJSONCallback(
+            self[`_${name}`] ||
+                (name.endsWith("Async")
+                    ? async (wrap, xworker, ...cbs) => {
+                          for (const cb of cbs) await cb(wrap, xworker);
+                      }
+                    : (wrap, xworker, ...cbs) => {
+                          for (const cb of cbs) cb(wrap, xworker);
+                      }),
+        );
+        const a = cbs.map(toJSONCallback).join(", ");
+        return Function(`return(w,x)=>(${cb})(w,x,...[${a}])`)();
+    }
+};
+
+const SetFunction = typedSet({ typeof: "function" });
+const SetString = typedSet({ typeof: "string" });
+
+export const inputFailure = `
+    import builtins
+    def input(prompt=""):
+        raise Exception("\\n           ".join([
+            "input() doesn't work when PyScript runs in the main thread.",
+            "Consider using the worker attribute: https://pyscript.github.io/docs/2023.11.2/user-guide/workers/"
+        ]))
+
+    builtins.input = input
+    del builtins
+    del input
+`;
+
+export const hooks = {
+    main: {
+        /** @type {Set<function>} */
+        onWorker: new SetFunction(),
+        /** @type {Set<function>} */
+        onReady: new SetFunction(),
+        /** @type {Set<function>} */
+        onBeforeRun: new SetFunction(),
+        /** @type {Set<function>} */
+        onBeforeRunAsync: new SetFunction(),
+        /** @type {Set<function>} */
+        onAfterRun: new SetFunction(),
+        /** @type {Set<function>} */
+        onAfterRunAsync: new SetFunction(),
+        /** @type {Set<string>} */
+        codeBeforeRun: new SetString([inputFailure]),
+        /** @type {Set<string>} */
+        codeBeforeRunAsync: new SetString(),
+        /** @type {Set<string>} */
+        codeAfterRun: new SetString(),
+        /** @type {Set<string>} */
+        codeAfterRunAsync: new SetString(),
+    },
+    worker: {
+        /** @type {Set<function>} */
+        onReady: new SetFunction(),
+        /** @type {Set<function>} */
+        onBeforeRun: new SetFunction(),
+        /** @type {Set<function>} */
+        onBeforeRunAsync: new SetFunction(),
+        /** @type {Set<function>} */
+        onAfterRun: new SetFunction(),
+        /** @type {Set<function>} */
+        onAfterRunAsync: new SetFunction(),
+        /** @type {Set<string>} */
+        codeBeforeRun: new SetString(),
+        /** @type {Set<string>} */
+        codeBeforeRunAsync: new SetString(),
+        /** @type {Set<string>} */
+        codeAfterRun: new SetString(),
+        /** @type {Set<string>} */
+        codeAfterRunAsync: new SetString(),
+    },
+};