rebrand to notevi: one CLI over the jj sidecar

vr and vrsite become a single binary. vrsite/ folds into a web package in
one module (0x4200.cafe/notevi); "notevi web" serves and exports exactly
what vrsite did, and "notevi read/grep/note/query" is unchanged.

The sidecar is renamed with it: notevi_log, notevi-log.jsonl, and the
description "private: notevi log". The pre-rebrand names are still
recognized, so an old repository opens and reads; it is renamed in place
on the first write, or up front with "notevi migrate DIR...".

That rename cannot be a single mv inside jj run. jj only auto-tracks a
*new* file in the run working copy below a size limit it does not take
from the command line, so writing a whole log under a name the change has
never held is silently dropped while jj reports success. ensureLogFile
creates the file empty first and lets every later byte be a modification
of a tracked file, which snapshots at any size; that also fixes the same
latent bug when importing a large legacy vr-log.jsonl.

Adds a bem-te-vi mark (favicon and nav brand) and a README.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

1 files changed, 56 insertions, 0 deletions

diff --git a/web/templates/page-index.tmpl b/web/templates/page-index.tmpl
new file mode 100644
index 0000000..93cad6b
--- /dev/null
+++ b/web/templates/page-index.tmpl
@@ -0,0 +1,56 @@
+{{define "page-index"}}
+<header class="filehead">
+  <h1>{{.Site.Title}}</h1>
+  <p class="meta">
+    {{len .Files}} files at <code title="{{.ChangeID}}">{{short .ChangeID}}</code> ·
+    {{len .Site.Order}} traced, {{len .Site.Notes}} notes
+    {{if or (eq .Scope "all") .ScopeEmpty}}<span class="away">across every change</span>{{else}}here{{end}} ·
+    theme {{.Site.Theme.Name}}
+  </p>
+</header>
+
+{{if .Live}}
+<section>
+  <h2>Live <span class="meta">— agents reading this codebase</span></h2>
+  <div id="activity-full" hx-get="{{.Href "activity"}}" hx-trigger="load, every 3s" hx-swap="innerHTML">
+    <p class="meta hint">…</p>
+  </div>
+</section>
+{{end}}
+
+<section class="trace-only">
+  <h2>Agents</h2>
+  <table>
+    <thead><tr><th>agent</th><th>model</th><th>effort</th><th>session</th><th>reads</th><th>greps</th><th>notes</th></tr></thead>
+    <tbody>
+    {{range .Site.Agents}}
+      <tr><td><span class="chip am{{.Bit}}">{{.Short}}</span></td>
+          <td>{{.Model}}</td><td>{{.Reason}}</td>
+          <td>{{if and $.Live .Session}}<a href="{{$.Href "session" .Session}}" title="{{.Session}}"><code>{{short .Session}}</code></a>
+              {{else}}<code title="{{.Session}}">{{short .Session}}</code>{{end}}</td>
+          <td>{{.Reads}}</td><td>{{.Greps}}</td><td>{{.Notes}}</td></tr>
+    {{end}}
+    </tbody>
+  </table>
+</section>
+
+<section class="trace-only">
+  <h2>Coverage</h2>
+  <table>
+    <thead><tr><th>file</th><th>read</th><th>lines</th><th>notes</th></tr></thead>
+    <tbody>
+    {{range .Site.Order}}{{with index $.Site.Files .}}
+      <tr><td><a href="{{$.Href "code" .Path}}">{{.Path}}</a></td>
+          <td><data class="bar am{{.Mask}}" value="{{.Pct}}" style="--pct:{{.Pct}}%">{{.Pct}}%</data></td>
+          <td>{{.Covered}}/{{.Total}}</td><td>{{len .Notes}}</td></tr>
+    {{end}}{{end}}
+    </tbody>
+  </table>
+</section>
+
+<section class="notes-only">
+  <h2>Latest notes <span class="meta">— <a href="{{.Href "notes"}}">all {{len .Site.Notes}}, with filters</a></span></h2>
+  <div class="notecols">{{range .Notes}}{{template "note" (dict "N" . "P" $)}}{{end}}</div>
+  {{if not .Notes}}<p class="meta hint">no notes in the log yet</p>{{end}}
+</section>
+{{end}}