feat(meta): rename vhosts/ directory to services/

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diff --git a/services/blog/nuldoc-src/djot/djot2ndoc.ts b/services/blog/nuldoc-src/djot/djot2ndoc.ts
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@@ -0,0 +1,842 @@
+import {
+  Block as DjotBlock,
+  BlockQuote as DjotBlockQuote,
+  BulletList as DjotBulletList,
+  CodeBlock as DjotCodeBlock,
+  Definition as DjotDefinition,
+  DefinitionList as DjotDefinitionList,
+  DefinitionListItem as DjotDefinitionListItem,
+  Delete as DjotDelete,
+  DisplayMath as DjotDisplayMath,
+  Div as DjotDiv,
+  Doc as DjotDoc,
+  DoubleQuoted as DjotDoubleQuoted,
+  Email as DjotEmail,
+  Emph as DjotEmph,
+  FootnoteReference as DjotFootnoteReference,
+  HardBreak as DjotHardBreak,
+  Heading as DjotHeading,
+  Image as DjotImage,
+  Inline as DjotInline,
+  InlineMath as DjotInlineMath,
+  Insert as DjotInsert,
+  Link as DjotLink,
+  ListItem as DjotListItem,
+  Mark as DjotMark,
+  NonBreakingSpace as DjotNonBreakingSpace,
+  OrderedList as DjotOrderedList,
+  Para as DjotPara,
+  RawBlock as DjotRawBlock,
+  RawInline as DjotRawInline,
+  Section as DjotSection,
+  SingleQuoted as DjotSingleQuoted,
+  SmartPunctuation as DjotSmartPunctuation,
+  SoftBreak as DjotSoftBreak,
+  Span as DjotSpan,
+  Str as DjotStr,
+  Strong as DjotStrong,
+  Subscript as DjotSubscript,
+  Superscript as DjotSuperscript,
+  Symb as DjotSymb,
+  Table as DjotTable,
+  TaskList as DjotTaskList,
+  TaskListItem as DjotTaskListItem,
+  Term as DjotTerm,
+  ThematicBreak as DjotThematicBreak,
+  Url as DjotUrl,
+  Verbatim as DjotVerbatim,
+} from "@djot/djot";
+import { Element, Node } from "../dom.ts";
+
+function processBlock(node: DjotBlock): Element {
+  switch (node.tag) {
+    case "section":
+      return processSection(node);
+    case "para":
+      return processPara(node);
+    case "heading":
+      return processHeading(node);
+    case "thematic_break":
+      return processThematicBreak(node);
+    case "block_quote":
+      return processBlockQuote(node);
+    case "code_block":
+      return processCodeBlock(node);
+    case "bullet_list":
+      return processBulletList(node);
+    case "ordered_list":
+      return processOrderedList(node);
+    case "task_list":
+      return processTaskList(node);
+    case "definition_list":
+      return processDefinitionList(node);
+    case "table":
+      return processTable(node);
+    case "div":
+      return processDiv(node);
+    case "raw_block":
+      return processRawBlock(node);
+  }
+}
+
+function processSection(node: DjotSection): Element {
+  return {
+    kind: "element",
+    name: "section",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processBlock),
+  };
+}
+
+function processPara(node: DjotPara): Element {
+  return {
+    kind: "element",
+    name: "p",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processHeading(node: DjotHeading): Element {
+  const attributes = convertAttributes(node.attributes);
+  return {
+    kind: "element",
+    name: "h",
+    attributes,
+    children: node.children.map(processInline),
+  };
+}
+
+function processThematicBreak(node: DjotThematicBreak): Element {
+  return {
+    kind: "element",
+    name: "hr",
+    attributes: convertAttributes(node.attributes),
+    children: [],
+  };
+}
+
+function processBlockQuote(node: DjotBlockQuote): Element {
+  return {
+    kind: "element",
+    name: "blockquote",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processBlock),
+  };
+}
+
+function processCodeBlock(node: DjotCodeBlock): Element {
+  const attributes = convertAttributes(node.attributes);
+  if (node.lang) {
+    attributes.set("language", node.lang);
+  }
+  if (node.attributes?.filename) {
+    attributes.set("filename", node.attributes.filename);
+  }
+  if (node.attributes?.numbered) {
+    attributes.set("numbered", "true");
+  }
+  return {
+    kind: "element",
+    name: "codeblock",
+    attributes,
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processBulletList(node: DjotBulletList): Element {
+  const attributes = convertAttributes(node.attributes);
+  attributes.set("--tight", node.tight ? "true" : "false");
+  return {
+    kind: "element",
+    name: "ul",
+    attributes,
+    children: node.children.map(processListItem),
+  };
+}
+
+function processOrderedList(node: DjotOrderedList): Element {
+  const attributes = convertAttributes(node.attributes);
+  attributes.set("--tight", node.tight ? "true" : "false");
+  if (node.start !== undefined && node.start !== 1) {
+    attributes.set("start", node.start.toString());
+  }
+  return {
+    kind: "element",
+    name: "ol",
+    attributes,
+    children: node.children.map(processListItem),
+  };
+}
+
+function processTaskList(node: DjotTaskList): Element {
+  const attributes = convertAttributes(node.attributes);
+  attributes.set("type", "task");
+  attributes.set("--tight", node.tight ? "true" : "false");
+  return {
+    kind: "element",
+    name: "ul",
+    attributes,
+    children: node.children.map(processTaskListItem),
+  };
+}
+
+function processListItem(node: DjotListItem): Element {
+  return {
+    kind: "element",
+    name: "li",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processBlock),
+  };
+}
+
+function processTaskListItem(node: DjotTaskListItem): Element {
+  const attributes = convertAttributes(node.attributes);
+  attributes.set("checked", node.checkbox === "checked" ? "true" : "false");
+  return {
+    kind: "element",
+    name: "li",
+    attributes,
+    children: node.children.map(processBlock),
+  };
+}
+
+function processDefinitionList(node: DjotDefinitionList): Element {
+  return {
+    kind: "element",
+    name: "dl",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.flatMap(processDefinitionListItem),
+  };
+}
+
+function processDefinitionListItem(node: DjotDefinitionListItem): Element[] {
+  return [
+    processTerm(node.children[0]),
+    processDefinition(node.children[1]),
+  ];
+}
+
+function processTerm(node: DjotTerm): Element {
+  return {
+    kind: "element",
+    name: "dt",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processDefinition(node: DjotDefinition): Element {
+  return {
+    kind: "element",
+    name: "dd",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processBlock),
+  };
+}
+
+function processTable(node: DjotTable): Element {
+  // Tables in Djot have a caption as first child and then rows
+  // For now, we'll create a basic table structure and ignore caption
+  const tableElement: Element = {
+    kind: "element",
+    name: "table",
+    attributes: convertAttributes(node.attributes),
+    children: [],
+  };
+
+  // Process caption if it exists (first child)
+  if (node.children.length > 0 && node.children[0].tag === "caption") {
+    const caption: Element = {
+      kind: "element",
+      name: "caption",
+      attributes: new Map(),
+      children: node.children[0].children.map(processInline),
+    };
+    tableElement.children.push(caption);
+  }
+
+  // Group rows into thead, tbody based on head property
+  const headerRows: Element[] = [];
+  const bodyRows: Element[] = [];
+
+  // Start from index 1 to skip caption
+  for (let i = 1; i < node.children.length; i++) {
+    const row = node.children[i];
+    if (row.tag === "row") {
+      const rowElement: Element = {
+        kind: "element",
+        name: "tr",
+        attributes: convertAttributes(row.attributes),
+        children: row.children.map((cell) => {
+          const cellElement: Element = {
+            kind: "element",
+            name: cell.head ? "th" : "td",
+            attributes: convertAttributes(cell.attributes),
+            children: cell.children.map(processInline),
+          };
+
+          // Set alignment attribute if needed
+          if (cell.align !== "default") {
+            cellElement.attributes.set("align", cell.align);
+          }
+
+          return cellElement;
+        }),
+      };
+
+      if (row.head) {
+        headerRows.push(rowElement);
+      } else {
+        bodyRows.push(rowElement);
+      }
+    }
+  }
+
+  // Add thead and tbody if needed
+  if (headerRows.length > 0) {
+    tableElement.children.push({
+      kind: "element",
+      name: "thead",
+      attributes: new Map(),
+      children: headerRows,
+    });
+  }
+
+  if (bodyRows.length > 0) {
+    tableElement.children.push({
+      kind: "element",
+      name: "tbody",
+      attributes: new Map(),
+      children: bodyRows,
+    });
+  }
+
+  return tableElement;
+}
+
+function processInline(node: DjotInline): Node {
+  switch (node.tag) {
+    case "str":
+      return processStr(node);
+    case "soft_break":
+      return processSoftBreak(node);
+    case "hard_break":
+      return processHardBreak(node);
+    case "verbatim":
+      return processVerbatim(node);
+    case "emph":
+      return processEmph(node);
+    case "strong":
+      return processStrong(node);
+    case "link":
+      return processLink(node);
+    case "image":
+      return processImage(node);
+    case "mark":
+      return processMark(node);
+    case "superscript":
+      return processSuperscript(node);
+    case "subscript":
+      return processSubscript(node);
+    case "insert":
+      return processInsert(node);
+    case "delete":
+      return processDelete(node);
+    case "email":
+      return processEmail(node);
+    case "footnote_reference":
+      return processFootnoteReference(node);
+    case "url":
+      return processUrl(node);
+    case "span":
+      return processSpan(node);
+    case "inline_math":
+      return processInlineMath(node);
+    case "display_math":
+      return processDisplayMath(node);
+    case "non_breaking_space":
+      return processNonBreakingSpace(node);
+    case "symb":
+      return processSymb(node);
+    case "raw_inline":
+      return processRawInline(node);
+    case "double_quoted":
+      return processDoubleQuoted(node);
+    case "single_quoted":
+      return processSingleQuoted(node);
+    case "smart_punctuation":
+      return processSmartPunctuation(node);
+  }
+}
+
+function processStr(node: DjotStr): Node {
+  return {
+    kind: "text",
+    content: node.text,
+    raw: false,
+  };
+}
+
+function processSoftBreak(_node: DjotSoftBreak): Node {
+  return {
+    kind: "text",
+    content: "\n",
+    raw: false,
+  };
+}
+
+function processHardBreak(_node: DjotHardBreak): Node {
+  return {
+    kind: "element",
+    name: "br",
+    attributes: new Map(),
+    children: [],
+  };
+}
+
+function processVerbatim(node: DjotVerbatim): Element {
+  return {
+    kind: "element",
+    name: "code",
+    attributes: convertAttributes(node.attributes),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processEmph(node: DjotEmph): Element {
+  return {
+    kind: "element",
+    name: "em",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processStrong(node: DjotStrong): Element {
+  return {
+    kind: "element",
+    name: "strong",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processLink(node: DjotLink): Element {
+  const attributes = convertAttributes(node.attributes);
+  if (node.destination !== undefined) {
+    attributes.set("href", node.destination);
+  }
+  return {
+    kind: "element",
+    name: "a",
+    attributes,
+    children: node.children.map(processInline),
+  };
+}
+
+function processImage(node: DjotImage): Element {
+  const attributes = convertAttributes(node.attributes);
+  if (node.destination !== undefined) {
+    attributes.set("src", node.destination);
+  }
+
+  // Alt text is derived from children in Djot
+  const alt = node.children
+    .map((child) => {
+      if (child.tag === "str") {
+        return child.text;
+      }
+      return "";
+    })
+    .join("");
+
+  if (alt) {
+    attributes.set("alt", alt);
+  }
+
+  return {
+    kind: "element",
+    name: "img",
+    attributes,
+    children: [],
+  };
+}
+
+function processMark(node: DjotMark): Element {
+  return {
+    kind: "element",
+    name: "mark",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processSuperscript(node: DjotSuperscript): Element {
+  return {
+    kind: "element",
+    name: "sup",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processSubscript(node: DjotSubscript): Element {
+  return {
+    kind: "element",
+    name: "sub",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processInsert(node: DjotInsert): Element {
+  return {
+    kind: "element",
+    name: "ins",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processDelete(node: DjotDelete): Element {
+  return {
+    kind: "element",
+    name: "del",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processEmail(node: DjotEmail): Element {
+  return {
+    kind: "element",
+    name: "email",
+    attributes: convertAttributes(node.attributes),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processFootnoteReference(node: DjotFootnoteReference): Element {
+  return {
+    kind: "element",
+    name: "footnoteref",
+    attributes: new Map([["reference", node.text]]),
+    children: [],
+  };
+}
+
+function processUrl(node: DjotUrl): Element {
+  return {
+    kind: "element",
+    name: "a",
+    attributes: new Map([
+      ["href", node.text],
+      ...Object.entries(node.attributes || {}),
+    ]),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processSpan(node: DjotSpan): Element {
+  return {
+    kind: "element",
+    name: "span",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processInline),
+  };
+}
+
+function processInlineMath(node: DjotInlineMath): Element {
+  // For inline math, we'll wrap it in a span with a class
+  return {
+    kind: "element",
+    name: "span",
+    attributes: new Map([
+      ["class", "math inline"],
+      ...Object.entries(node.attributes || {}),
+    ]),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processDisplayMath(node: DjotDisplayMath): Element {
+  // For display math, we'll wrap it in a div with a class
+  return {
+    kind: "element",
+    name: "div",
+    attributes: new Map([
+      ["class", "math display"],
+      ...Object.entries(node.attributes || {}),
+    ]),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+function processNonBreakingSpace(_node: DjotNonBreakingSpace): Node {
+  return {
+    kind: "text",
+    content: "\u00A0", // Unicode non-breaking space
+    raw: false,
+  };
+}
+
+function processSymb(node: DjotSymb): Node {
+  // Map symbol aliases to their Unicode characters
+  const symbolMap: Record<string, string> = {
+    "->": "→",
+    "<-": "←",
+    "<->": "↔",
+    "=>": "⇒",
+    "<=": "⇐",
+    "<=>": "⇔",
+    "--": "–", // en dash
+    "---": "—", // em dash
+    "...": "…", // ellipsis
+    // Add more symbol mappings as needed
+  };
+
+  const symbolText = symbolMap[node.alias] || node.alias;
+
+  return {
+    kind: "text",
+    content: symbolText,
+    raw: false,
+  };
+}
+
+function processRawInline(node: DjotRawInline): Node {
+  // If the format is HTML, return as raw HTML
+  if (node.format === "html" || node.format === "HTML") {
+    return {
+      kind: "text",
+      content: node.text,
+      raw: true,
+    };
+  }
+
+  // For other formats, just return as text
+  return {
+    kind: "text",
+    content: node.text,
+    raw: false,
+  };
+}
+
+function processDoubleQuoted(node: DjotDoubleQuoted): Node {
+  const children = node.children.map(processInline);
+  const attributes = convertAttributes(node.attributes);
+
+  if (
+    children.length === 1 && children[0].kind === "text" &&
+    attributes.size === 0
+  ) {
+    const content = children[0].content;
+    return {
+      kind: "text",
+      content: `\u201C${content}\u201D`,
+      raw: false,
+    };
+  } else {
+    return {
+      kind: "element",
+      name: "span",
+      attributes: convertAttributes(node.attributes),
+      children,
+    };
+  }
+}
+
+function processSingleQuoted(node: DjotSingleQuoted): Node {
+  const children = node.children.map(processInline);
+  const attributes = convertAttributes(node.attributes);
+
+  if (
+    children.length === 1 && children[0].kind === "text" &&
+    attributes.size === 0
+  ) {
+    const content = children[0].content;
+    return {
+      kind: "text",
+      content: `\u2018${content}\u2019`,
+      raw: false,
+    };
+  } else {
+    return {
+      kind: "element",
+      name: "span",
+      attributes: convertAttributes(node.attributes),
+      children,
+    };
+  }
+}
+
+function processSmartPunctuation(node: DjotSmartPunctuation): Node {
+  // Map smart punctuation types to Unicode characters
+  const punctuationMap: Record<string, string> = {
+    "left_single_quote": "\u2018", // '
+    "right_single_quote": "\u2019", // '
+    "left_double_quote": "\u201C", // "
+    "right_double_quote": "\u201D", // "
+    "ellipses": "\u2026", // …
+    "em_dash": "\u2014", // —
+    "en_dash": "\u2013", // –
+  };
+
+  return {
+    kind: "text",
+    content: punctuationMap[node.type] || node.text,
+    raw: false,
+  };
+}
+
+function processDiv(node: DjotDiv): Element {
+  if (node.attributes?.class === "note") {
+    delete node.attributes.class;
+    return {
+      kind: "element",
+      name: "note",
+      attributes: convertAttributes(node.attributes),
+      children: node.children.map(processBlock),
+    };
+  }
+
+  if (node.attributes?.class === "edit") {
+    delete node.attributes.class;
+    return {
+      kind: "element",
+      name: "note",
+      attributes: convertAttributes(node.attributes),
+      children: node.children.map(processBlock),
+    };
+  }
+
+  return {
+    kind: "element",
+    name: "div",
+    attributes: convertAttributes(node.attributes),
+    children: node.children.map(processBlock),
+  };
+}
+
+function processRawBlock(node: DjotRawBlock): Element {
+  // If the format is HTML, wrap the HTML content in a div
+  if (node.format === "html" || node.format === "HTML") {
+    return {
+      kind: "element",
+      name: "div",
+      attributes: new Map([["class", "raw-html"]]),
+      children: [
+        {
+          kind: "text",
+          content: node.text,
+          raw: true,
+        },
+      ],
+    };
+  }
+
+  // For other formats, wrap in a pre tag
+  return {
+    kind: "element",
+    name: "pre",
+    attributes: new Map([["data-format", node.format]]),
+    children: [
+      {
+        kind: "text",
+        content: node.text,
+        raw: false,
+      },
+    ],
+  };
+}
+
+// Helper function to convert Djot attributes to Nuldoc attributes
+function convertAttributes(
+  attrs?: Record<string, string>,
+): Map<string, string> {
+  const result = new Map<string, string>();
+  if (attrs) {
+    for (const [key, value] of Object.entries(attrs)) {
+      result.set(key, value);
+    }
+  }
+  return result;
+}
+
+export function djot2ndoc(doc: DjotDoc): Element {
+  const children: Node[] = [];
+  for (const child of doc.children) {
+    children.push(processBlock(child));
+  }
+
+  // Process footnotes if any exist
+  if (doc.footnotes && Object.keys(doc.footnotes).length > 0) {
+    const footnoteSection: Element = {
+      kind: "element",
+      name: "section",
+      attributes: new Map([["class", "footnotes"]]),
+      children: [],
+    };
+
+    for (const [id, footnote] of Object.entries(doc.footnotes)) {
+      const footnoteElement: Element = {
+        kind: "element",
+        name: "footnote",
+        attributes: new Map([["id", id]]),
+        children: footnote.children.map(processBlock),
+      };
+      footnoteSection.children.push(footnoteElement);
+    }
+
+    children.push(footnoteSection);
+  }
+
+  return {
+    kind: "element",
+    name: "__root__",
+    attributes: new Map(),
+    children: [{
+      kind: "element",
+      name: "article",
+      attributes: new Map(),
+      children,
+    }],
+  };
+}