feat: add LexAI status bar and suggestion panel

- Implemented a status bar item for LexAI with dynamic status updates (ready, processing, notReady).
- Created a suggestion panel for displaying and interacting with AI-generated suggestions.
- Added functionality for accepting, regenerating, and discarding suggestions within the suggestion zone.
- Introduced configuration options for writing style, prompt patterns, personas, and formats.
- Integrated progress indicators for long-running tasks and improved user feedback.
- Established TypeScript configuration for the vscode package.

.cursor/hooks/session-context.mjs

@@ -0,0 +1,148 @@
+#!/usr/bin/env node
+/**
+ * sessionStart hook — inject the facts a session should never have to ask for.
+ *
+ *   1. Are the model lanes bound, and is the picker running the model we recorded?
+ *   2. What did the last session leave as the next action?
+ *   3. Is any capped context file over its cap right now?
+ *
+ * All three are deterministic file/state checks. The point of doing them here rather
+ * than in a prompt is that a rule asking the model to "check the caps" is a request;
+ * this is an observation.
+ *
+ * Contract: stdin is the sessionStart JSON payload; stdout is
+ * {"additional_context": "..."}. This hook is fire-and-forget — Cursor logs the
+ * response but never blocks session creation on it. It fails open by design:
+ * any error prints an empty object and exits 0.
+ */
+
+import { readFileSync, existsSync } from "node:fs";
+import { join } from "node:path";
+
+const readAll = () =>
+  new Promise((resolve) => {
+    let data = "";
+    process.stdin.setEncoding("utf8");
+    process.stdin.on("data", (c) => (data += c));
+    process.stdin.on("end", () => resolve(data));
+    setTimeout(() => resolve(data), 2000).unref();
+  });
+
+const read = (p) => {
+  try {
+    return existsSync(p) ? readFileSync(p, "utf8") : null;
+  } catch {
+    return null;
+  }
+};
+
+/**
+ * Real content lines: not blank, not a heading, not the file's instructional blockquote,
+ * not a table rule, not an HTML comment, and not one of the shipped `_None yet._` /
+ * `[placeholder]` template rows. Counting boilerplate would report a freshly installed
+ * kit as already consuming its caps.
+ */
+const isPlaceholder = (l) =>
+  /^[-|*\s]*_?(none|no )/i.test(l) ||
+  /^\|?\s*_?\[/.test(l) ||
+  /^-\s*\*\(/.test(l) ||
+  /^\|\s*\[/.test(l);
+
+const contentLines = (text) =>
+  text
+    .split("\n")
+    .map((l) => l.trim())
+    .filter(
+      (l) =>
+        l &&
+        !l.startsWith("#") &&
+        !l.startsWith(">") &&
+        !l.startsWith("<!--") &&
+        !l.startsWith("*") &&
+        !/^\|?[\s|:-]+\|?$/.test(l) &&
+        !isPlaceholder(l),
+    );
+
+function main(payload) {
+  const root = payload?.workspace_roots?.[0] ?? process.cwd();
+  const notes = [];
+
+  // ---- 1. model routing -------------------------------------------------
+  const routing = read(join(root, "docs", "MODEL_ROUTING.md"));
+  if (!routing) {
+    notes.push("Routing: docs/MODEL_ROUTING.md is missing — this kit is not fully installed.");
+  } else if (/\[LEAD\]|\[STRONG\]|\[MID\]|\[FAST\]/.test(routing)) {
+    notes.push(
+      "Routing: UNBOUND. Every subagent is still `model: inherit`, so each one costs what this session costs. " +
+        "Run /model-routing before delegating.",
+    );
+  } else {
+    const row = routing.match(/^\|\s*\*\*lead\*\*\s*\|\s*`?([^`|]+?)`?\s*\|/m);
+    // Exact match after normalising case and separators. Substring matching would treat
+    // composer-2.5 and composer-2.5-fast — two different lanes in this kit's own table —
+    // as the same model and stay silent on a real downgrade.
+    const norm = (s) => s.toLowerCase().replace(/[\s_()]+/g, "-").replace(/-+/g, "-").replace(/^-|-$/g, "");
+    const recorded = row?.[1]?.trim();
+    const actual = (payload?.model_id || payload?.model || "").trim();
+    if (recorded && actual && norm(recorded) !== norm(actual)) {
+      notes.push(
+        `Routing: lead-model drift — docs/MODEL_ROUTING.md records "${recorded}" but this session is running "${actual}". ` +
+          "Either switch the picker or re-run /model-routing; do not silently proceed on the wrong lane.",
+      );
+    } else if (recorded) {
+      notes.push(`Routing: bound (lead = ${recorded}).`);
+    }
+  }
+
+  // ---- 2. handoff -------------------------------------------------------
+  const handoff = read(join(root, "docs", "HANDOFF.md"));
+  if (handoff) {
+    const next = handoff.match(/Next smallest action:\*{0,2}\s*(.+)/);
+    if (next) notes.push(`Handoff next action: ${next[1].trim()}`);
+  }
+
+  // ---- 3. context caps --------------------------------------------------
+  const over = [];
+  const memory = read(join(root, "docs", "MEMORY.md"));
+  if (memory) {
+    const n = contentLines(memory).filter((l) => l.startsWith("-") || l.startsWith("|")).length;
+    if (n > 60) over.push(`docs/MEMORY.md ${n}/60 entry lines`);
+  }
+  if (handoff) {
+    const n = contentLines(handoff).length;
+    if (n > 25) over.push(`docs/HANDOFF.md ${n}/25 lines`);
+  }
+  const tasks = read(join(root, "docs", "TASKS.md"));
+  if (tasks) {
+    const active = tasks.split(/^##\s+/m).find((s) => /^Active\b/i.test(s));
+    if (active) {
+      const n = (active.match(/^###\s+T-/gm) || []).length;
+      if (n > 7) over.push(`docs/TASKS.md Active ${n}/7 contracts`);
+    }
+  }
+  const agents = read(join(root, "AGENTS.md"));
+  if (agents) {
+    const section = agents.split(/^##\s+Lessons\s*$/m)[1];
+    if (section) {
+      const rules = section.split(/^##\s/m)[0].split("\n").filter((l) => /^\s*-\s+\S/.test(l) && !l.includes("*(Add one-line"));
+      if (rules.length > 12) over.push(`AGENTS.md ## Lessons ${rules.length}/12 rules`);
+    }
+  }
+  if (over.length) {
+    notes.push(`Context caps EXCEEDED: ${over.join(" · ")}. Run /memory-sync before adding anything.`);
+  }
+
+  return notes.length
+    ? { additional_context: `Project state (from .cursor/hooks/session-context.mjs):\n- ${notes.join("\n- ")}` }
+    : {};
+}
+
+const raw = await readAll();
+let out = {};
+try {
+  out = main(raw ? JSON.parse(raw) : {});
+} catch {
+  out = {};
+}
+process.stdout.write(JSON.stringify(out));
+process.exit(0);