feat(layout-review): journey-level redesign — front door, taught order, consistency

Addresses the journey-level review (the app felt like 12 tools sharing a
stylesheet, not one guided product). File-partitioned changes:

Navigation (shell.js): rename Home -> "Start here" with front-door
emphasis (.dt-nav-start); reorder Data Cleaners into pipeline order
(Clean Text -> Standardize -> Fix Missing -> Find Duplicates); new
"Finance" group (Reconcile, PDF to CSV); all stubs moved to a bottom
"Coming soon" group, no longer interleaved with working tools.

Front door (home.html): a prominent primary "Clean these files for me"
that runs the recommended pipeline in order, above the existing
per-finding cards (reframed as "fix one thing at a time").

Shared tokens (app.css): .dt-next-step suggestion strip + .dt-nav-start.

Teach the order: a slim .dt-next-step strip at the end of each linear
cleaner page points to the next pipeline step (Map Columns -> Start here;
orchestrator/Finance pages correctly omit it).

Local-first: the green "Runs 100% locally" pill now sits in every working
tool page's header (home + 8 tools), where client data is entered.

Plain English: jargon relabeled on input controls (coerce, E.164,
NFC/NFKC, sentinels, survivor rule), technical terms kept in tooltips and
audit/output cells only.

Stubs (06/08/07): rebuilt to one identical skeleton — info line + plain
feature list + a real "Notify me when this ships" button; every disabled
control and uploader removed (a dimmed dropzone reads as broken).

Intake: full dropzone+chip replaced with the compact "Using <file>" banner
on Clean Text, Fix Missing, Find Duplicates, and both Reconcile sides.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

layout-review/03_format_standardizer.html

@@ -19,7 +19,16 @@
       <!-- Tool header -->
       <div class="dt-tool-header">
         <h1>Standardize Formats</h1>
-        <button class="dt-help-btn"><span class="dt-mi">help_outline</span> Help</button>
+        <div style="display:inline-flex;align-items:center;gap:12px">
+          <span class="dt-privacy-pill">
+            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor">
+              <rect x="4" y="11" width="16" height="10" rx="2"/>
+              <path d="M8 11V7a4 4 0 018 0v4"/>
+            </svg>
+            Runs 100% locally
+          </span>
+          <button class="dt-help-btn"><span class="dt-mi">help_outline</span> Help</button>
+        </div>
       </div>
       <p class="dt-tool-caption">Make dates, phones, currency, and names look the same throughout.</p>
 
@@ -81,7 +90,7 @@
           <div class="dt-field">
             <label class="dt-label">Standards preset</label>
             <div style="display:flex;flex-direction:column;gap:8px;margin-top:4px">
-              <span class="dt-radio"><span class="dot"></span> US (default) — ISO 8601 dates · E.164 phones · USD</span>
+              <span class="dt-radio" title="E.164 phones"><span class="dot"></span> US (default) — ISO 8601 dates · international-format phones (+1…) · USD</span>
               <span class="dt-radio"><span class="dot"></span> European — DMY input · INTL phones · EUR comma decimal <span class="dt-count-pill info" style="margin-left:4px">base</span></span>
               <span class="dt-radio"><span class="dot"></span> UK — DD/MM/YYYY · GB phones · Yes/No booleans</span>
               <span class="dt-radio"><span class="dot"></span> ISO Strict — ISO 8601 · bare-number currency · true/false</span>
@@ -111,7 +120,7 @@
               </div>
 
               <h4><strong>Phones</strong></h4>
-              <div class="dt-field"><label class="dt-label">Output format</label><div class="dt-select">E.164 (+15551234567)</div></div>
+              <div class="dt-field"><label class="dt-label" title="E.164">Output format</label><div class="dt-select" title="E.164">Standard international format (+15551234567)</div></div>
               <div class="dt-field">
                 <label class="dt-label">Default region (ISO-2)</label>
                 <div class="dt-input">US</div>
@@ -244,6 +253,9 @@
         <button class="dt-btn">Download config JSON</button>
       </div>
 
+      <!-- Next-step suggestion -->
+      <div class="dt-next-step"><span class="dt-mi">arrow_forward</span><span>Formats standardized. Next, most files need: <a href="04_missing_handler.html">Fix Missing Values →</a></span><button class="dt-next-step-dismiss" title="Dismiss">✕</button></div>
+
     </div>
   </main>
 </div>