chore: retire the Everything Claude Code name, ECC only (#3330)

* chore: retire the Everything Claude Code name, ECC only

Replace the expanded product name and the everything-claude-code slug
with ECC across READMEs, translated docs, harness folders, skills,
commands, scripts and examples. Repo URLs now point at affaan-m/ECC.

Rename repo-internal artifacts to ecc forms (ecc-conventions skill,
ecc-guardrails, ecc-research-playbook, ecc-team-config, ecc-instincts
with ecc-* ids) and update .claude/ecc-tools.json.

Legacy install ids, plugin dirs, package names and MCP prefixes stay
where existing installs resolve against them. The codex global-state
check and harness-audit repo detection accept the new name first and
the legacy one as a fallback. The Discord bot prefers ~/GitHub/ECC and
falls back to the nested legacy checkout path.

Refresh the skill-triggers registryDigest for the changed skill text.

* fix(ecc-tools): drop managed paths to the removed Claude repo skill

.claude/skills/<repo-skill>/SKILL.md was deleted in #2770 but stayed listed in
ecc-tools.json and the team config. Remove those entries and point the Claude
Code adapter at the existing .agents/skills/ecc-conventions/SKILL.md.

tests/scripts/codex-hooks.test.js

@@ -1167,7 +1167,7 @@ if (
       assert.strictEqual(syncResult.status, 0, `${syncResult.stdout}\n${syncResult.stderr}`);
 
       const syncedAgents = fs.readFileSync(agentsPath, 'utf8');
-      assert.match(syncedAgents, /^# Everything Claude Code \(ECC\) — Agent Instructions/m);
+      assert.match(syncedAgents, /^# ECC — Agent Instructions/m);
       assert.match(syncedAgents, /^# Codex Supplement \(From ECC \.codex\/AGENTS\.md\)/m);
 
       const syncedConfig = fs.readFileSync(configPath, 'utf8');

tests/scripts/observability-readiness.test.js

@@ -46,7 +46,7 @@ function runProcess(args = [], options = {}) {
 function seedMinimalRepo(rootDir, overrides = {}) {
   const files = {
     'package.json': JSON.stringify({
-      name: 'everything-claude-code',
+      name: 'ecc-universal',
       files: ['scripts/observability-readiness.js'],
       scripts: {
         'harness:audit': 'node scripts/harness-audit.js',

tests/scripts/operator-readiness-dashboard.test.js

@@ -28,7 +28,7 @@ function writeFile(rootDir, relativePath, content) {
 function seedRepo(rootDir, overrides = {}) {
   const files = {
     'package.json': JSON.stringify({
-      name: 'everything-claude-code',
+      name: 'ecc-universal',
       files: [
         'scripts/observability-readiness.js',
         'scripts/operator-readiness-dashboard.js',

tests/scripts/platform-audit.test.js

@@ -31,7 +31,7 @@ function writeFile(rootDir, relativePath, content) {
 function seedRepo(rootDir, overrides = {}) {
   const files = {
     'package.json': JSON.stringify({
-      name: 'everything-claude-code',
+      name: 'ecc-universal',
       scripts: {
         'platform:audit': 'node scripts/platform-audit.js',
         'discussion:audit': 'node scripts/discussion-audit.js',

tests/scripts/skill-create-output.test.js

@@ -176,7 +176,7 @@ function runTests() {
     const output = new SkillCreateOutput('repo');
     const logs = captureLog(() => output.footer());
     const combined = logs.join('\n');
-    assert.ok(combined.includes('Everything Claude Code'), 'Should include project name');
+    assert.ok(combined.includes('ECC'), 'Should include project name');
   })) passed++; else failed++;
 
   // progressBar edge cases (tests the clamp fix)