Rebrand SooSeF to FieldWitness

Complete project rebrand for better positioning in the press freedom
and digital security space. FieldWitness communicates both field
deployment and evidence testimony — appropriate for the target audience
of journalists, NGOs, and human rights organizations.

Rename mapping:
- soosef → fieldwitness (package, CLI, all imports)
- soosef.stegasoo → fieldwitness.stego
- soosef.verisoo → fieldwitness.attest
- ~/.soosef/ → ~/.fwmetadata/ (innocuous data dir name)
- SOOSEF_DATA_DIR → FIELDWITNESS_DATA_DIR
- SoosefConfig → FieldWitnessConfig
- SoosefError → FieldWitnessError

Also includes:
- License switch from MIT to GPL-3.0
- C2PA bridge module (Phase 0-2 MVP): cert.py, export.py, vendor_assertions.py
- README repositioned to lead with provenance/federation, stego backgrounded
- Threat model skeleton at docs/security/threat-model.md
- Planning docs: docs/planning/c2pa-integration.md, docs/planning/gtm-feasibility.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontends/web/templates/stego/about.html

@@ -1,17 +1,17 @@
 {% extends "base.html" %}
 
-{% block title %}About - Stegasoo{% endblock %}
+{% block title %}About - Stego{% endblock %}
 
 {% block content %}
 <div class="row justify-content-center">
     <div class="col-lg-10">
         <div class="card mb-4">
             <div class="card-header">
-                <h5 class="mb-0"><i class="bi bi-info-circle me-2"></i>About Stegasoo</h5>
+                <h5 class="mb-0"><i class="bi bi-info-circle me-2"></i>About Stego</h5>
             </div>
             <div class="card-body">
                 <p class="lead">
-                    Stegasoo hides encrypted messages and files inside images using multi-factor authentication.
+                    Stego hides encrypted messages and files inside images using multi-factor authentication.
                 </p>
                 
                 <h6 class="text-primary mt-4 mb-3">Features</h6>

frontends/web/templates/stego/decode.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Decode Message - Stegasoo{% endblock %}
+{% block title %}Decode Message - Stego{% endblock %}
 
 {% block content %}
 <style>
@@ -487,7 +487,7 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ url_for('static', filename='js/soosef.js') }}"></script>
+<script src="{{ url_for('static', filename='js/fieldwitness.js') }}"></script>
 <script>
 // ============================================================================
 // MODE HINT - Dynamic text based on selected extraction mode
@@ -677,6 +677,6 @@ if (document.getElementById('modeDct')?.disabled) {
 // LOADING STATE
 // ============================================================================
 
-Stegasoo.initFormLoading('decodeForm', 'decodeBtn', 'Decoding...');
+Stego.initFormLoading('decodeForm', 'decodeBtn', 'Decoding...');
 </script>
 {% endblock %}

frontends/web/templates/stego/encode.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Encode Message - Stegasoo{% endblock %}
+{% block title %}Encode Message - Stego{% endblock %}
 
 {% block content %}
 <style>
@@ -507,7 +507,7 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ url_for('static', filename='js/soosef.js') }}"></script>
+<script src="{{ url_for('static', filename='js/fieldwitness.js') }}"></script>
 <script>
 // ============================================================================
 // MODE HINT - Dynamic text based on selected embedding mode

frontends/web/templates/stego/encode_result.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Encode Success - Stegasoo{% endblock %}
+{% block title %}Encode Success - Stego{% endblock %}
 
 {% block content %}
 <div class="row justify-content-center">
@@ -218,7 +218,7 @@ if (navigator.share && navigator.canShare) {
                     try {
                         await navigator.share({
                             files: [file],
-                            title: 'Stegasoo Image',
+                            title: 'Stego Image',
                         });
                     } catch (err) {
                         if (err.name !== 'AbortError') {

frontends/web/templates/stego/generate.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Generate Credentials - Stegasoo{% endblock %}
+{% block title %}Generate Credentials - Stego{% endblock %}
 
 {% block content %}
 <div class="row justify-content-center" data-page="generate">
@@ -500,7 +500,7 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ url_for('static', filename='js/soosef.js') }}"></script>
+<script src="{{ url_for('static', filename='js/fieldwitness.js') }}"></script>
 <script src="{{ url_for('static', filename='js/generate.js') }}"></script>
 {% if generated %}
 <script>
@@ -508,7 +508,7 @@
 const passphraseWords = '{{ passphrase|default("", true) }}'.split(' ').filter(w => w.length > 0);
 
 function copyPin() {
-    Stegasoo.copyToClipboard(
+    Stego.copyToClipboard(
         '{{ pin|default("", true) }}',
         document.getElementById('pinCopyIcon'),
         document.getElementById('pinCopyText')
@@ -516,7 +516,7 @@ function copyPin() {
 }
 
 function copyPassphrase() {
-    Stegasoo.copyToClipboard(
+    Stego.copyToClipboard(
         '{{ passphrase|default("", true) }}',
         document.getElementById('passphraseCopyIcon'),
         document.getElementById('passphraseCopyText')
@@ -524,11 +524,11 @@ function copyPassphrase() {
 }
 
 function toggleMemoryAid() {
-    StegasooGenerate.toggleMemoryAid(passphraseWords);
+    StegoGenerate.toggleMemoryAid(passphraseWords);
 }
 
 function regenerateStory() {
-    StegasooGenerate.regenerateStory(passphraseWords);
+    StegoGenerate.regenerateStory(passphraseWords);
 }
 </script>
 {% endif %}

frontends/web/templates/stego/tools.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Tools - Stegasoo{% endblock %}
+{% block title %}Tools - Stego{% endblock %}
 
 {% block content %}
 <div class="row justify-content-center">