feat: add mind model with versioned personality, templates and self-model

Phase 2. Minds are rows with a slug, status (active/disabled/archived),
cognitive configuration and a pointer to the current personality version.
Personalities are structured (identity, values, traits, communication,
behaviour, free text) with a deterministic Brief() used by prompts and the
editor preview. Every change appends a personality_versions row protected
by the append-only trigger; restore copies an old version forward.
Templates carry reusable personalities; minds record their overrides so a
template can be re-applied without losing mind-specific edits. The
self-model starts with structural limitations the mind cannot drop
(no policy changes, no influence over shutdown, no cross-mind access).

API, UI (list, overview, editor with sliders/diff/history/import/export,
template editor) and noemactl mind/template commands. All mutations are
audited with field-level diffs.

web/static/app.js

@@ -62,6 +62,12 @@
       if (el && !window.confirm(el.getAttribute("data-confirm"))) { ev.preventDefault(); ev.stopImmediatePropagation(); }
     }, true);
 
+    // Live value readouts for range inputs.
+    document.querySelectorAll("input[type=range][data-out]").forEach((el) => {
+      const out = el.parentElement.querySelector("output");
+      if (out) el.addEventListener("input", () => (out.value = el.value));
+    });
+
     // Auto-dismiss flashes.
     document.querySelectorAll(".flash").forEach((f) => setTimeout(() => f.remove(), 8000));