rebrand: apply full MERLx Aperture identity per design spec

Updates all user-facing copy (landing page, PDF reports, emails, README)
and backend metadata to use "MERLx Aperture" branding consistently,
per the approved 2026-03-26 rebrand design specification.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

README.md

@@ -1,5 +1,5 @@
 ---
-title: Aperture
+title: MERLx Aperture
 emoji: 🛰️
 colorFrom: green
 colorTo: blue
@@ -7,6 +7,8 @@ sdk: docker
 app_port: 7860
 ---
 
-# Aperture
+# MERLx Aperture
 
-Satellite intelligence for humanitarian programme teams. Built by MERLx.
+AI-enhanced satellite analysis for humanitarian programme teams. Part of the MERLx Optics Suite.
+
+Built on methods developed in the SR4S research project.

app/core/email.py

@@ -6,7 +6,7 @@ import httpx
 logger = logging.getLogger(__name__)
 
 RESEND_API_KEY = os.environ.get("RESEND_API_KEY", "")
-FROM_EMAIL = "Aperture <noreply@aperture.merlx.org>"
+FROM_EMAIL = "MERLx Aperture <noreply@aperture.merlx.org>"
 
 async def send_completion_email(to_email: str, job_id: str, aoi_name: str) -> bool:
     if not RESEND_API_KEY:
@@ -21,7 +21,7 @@ async def send_completion_email(to_email: str, job_id: str, aoi_name: str) -> bo
             The satellite analysis for <strong>{aoi_name}</strong> is complete.
         </p>
         <p style="font-size: 11px; color: #6B6B6B; margin-top: 20px;">
-            Generated by Aperture (MERLx) using open satellite data.
+            Generated by MERLx Aperture using open satellite data.
         </p>
     </div>
     """
@@ -30,6 +30,6 @@ async def send_completion_email(to_email: str, job_id: str, aoi_name: str) -> bo
         resp = await client.post(
             "https://api.resend.com/emails",
             headers={"Authorization": f"Bearer {RESEND_API_KEY}"},
-            json={"from": FROM_EMAIL, "to": [to_email], "subject": f"Aperture: Analysis ready — {aoi_name}", "html": html},
+            json={"from": FROM_EMAIL, "to": [to_email], "subject": f"MERLx Aperture: Analysis ready — {aoi_name}", "html": html},
         )
     return resp.status_code == 200

app/main.py

@@ -30,7 +30,7 @@ def create_app(db_path: str = "aperture.db", run_worker: bool = False) -> FastAP
         if worker_task is not None:
             worker_task.cancel()
 
-    app = FastAPI(title="Aperture", lifespan=lifespan)
+    app = FastAPI(title="MERLx Aperture", lifespan=lifespan)
     init_jobs(db)
     app.include_router(jobs_router)
     app.include_router(indicators_router)
@@ -77,7 +77,7 @@ def create_app(db_path: str = "aperture.db", run_worker: bool = False) -> FastAP
         async def serve_index():
             if _INDEX_HTML.exists():
                 return HTMLResponse(content=_INDEX_HTML.read_text(encoding="utf-8"))
-            return HTMLResponse(content="<h1>Aperture</h1><p>Frontend not found.</p>")
+            return HTMLResponse(content="<h1>MERLx Aperture</h1><p>Frontend not found.</p>")
 
     return app
 

app/outputs/report.py

@@ -229,7 +229,7 @@ def generate_pdf_report(
         canvas.setFont("Helvetica", 7)
         canvas.setFillColor(INK_MUTED)
         footer_text = (
-            f"Aperture Situation Report \u2014 {aoi.name} \u2014 "
+            f"MERLx Aperture \u2014 Situation Report \u2014 {aoi.name} \u2014 "
             f"{time_range.start} to {time_range.end} \u2014 "
             f"Page {doc.page}"
         )
@@ -242,8 +242,8 @@ def generate_pdf_report(
         output_path,
         pagesize=A4,
         pageTemplates=[template],
-        title=f"Aperture Report — {aoi.name}",
-        author="Aperture (MERLx)",
+        title=f"MERLx Aperture — Situation Report — {aoi.name}",
+        author="MERLx Aperture",
     )
     doc.pageBackgrounds = [colors.white]
 
@@ -255,7 +255,7 @@ def generate_pdf_report(
     from datetime import datetime as _dt, timezone as _tz
     generated_at = _dt.now(_tz.utc).strftime("%Y-%m-%d %H:%M UTC")
 
-    story.append(Paragraph("Aperture Situation Report", styles["title"]))
+    story.append(Paragraph("MERLx Aperture — Situation Report", styles["title"]))
     story.append(Paragraph(aoi.name, styles["subtitle"]))
     story.append(
         Paragraph(
@@ -397,10 +397,10 @@ def generate_pdf_report(
     story.append(HRFlowable(width="100%", thickness=0.5, color=colors.HexColor("#D8D5CF")))
     story.append(Spacer(1, 3 * mm))
     disclaimer = (
-        "This report has been generated automatically by the Aperture platform using satellite "
+        "This report has been generated automatically by MERLx Aperture using satellite "
         "remote sensing data. Results are intended to support humanitarian situation analysis "
         "and should be interpreted alongside ground-truth information and expert judgement. "
-        "Aperture makes no warranty as to the accuracy or completeness of the data presented. "
+        "MERLx Aperture makes no warranty as to the accuracy or completeness of the data presented. "
         "All indicators are based on open-source satellite imagery and publicly available "
         "geospatial datasets. Temporal coverage, cloud contamination, and sensor resolution "
         "may affect the reliability of individual indicators. Users are encouraged to review "

frontend/index.html

@@ -3,7 +3,7 @@
 <head>
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Aperture</title>
+  <title>MERLx Aperture</title>
 
   <!-- MERLx Design System -->
   <link rel="stylesheet" href="/static/css/merlx.css" />
@@ -86,15 +86,20 @@
       MERL<span style="color: var(--iris)">x</span>
     </div>
 
+    <!-- Subtitle -->
+    <div class="landing-subtitle" style="font-family: 'DM Serif Display', serif; font-style: italic; font-size: var(--text-lg); color: var(--ink-muted); margin-top: var(--space-3);">
+      Aperture
+    </div>
+
     <!-- Headline -->
     <h1 class="landing-headline">
-      Satellite intelligence for programme teams.
+      AI-enhanced satellite analysis for humanitarian programme teams.
     </h1>
 
     <!-- Sub-copy -->
     <p class="landing-sub">
-      Upload your area of interest, choose indicators, and receive
-      a ready-made report backed by Sentinel-2 imagery within minutes.
+      Draw your area, choose your indicators, get evidence-grade
+      satellite analysis delivered — using free, open data.
     </p>
 
     <!-- CTA -->

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "aperture"
 version = "0.1.0"
-description = "Satellite intelligence platform for humanitarian programme teams"
+description = "MERLx Aperture — AI-enhanced satellite analysis for humanitarian programme teams"
 requires-python = ">=3.11"
 dependencies = [
     "fastapi>=0.110.0",