Rebrand: TeamClaw -> Clawmates (clawmates.work)

Full-depth rename per the approved plan; the 'claw' product vocabulary
(claws, /claws routes, clawId, Claw Chat) stays — it is now the brand.

- Display brand: Clawmates (manifest, titles, hero, login/rail logo
  'clawmates'); default host app.clawmates.work; registry
  ghcr.io/clawmates
- Crates tc-* -> cm-* (16 crates + all imports); binaries
  clawmates-server/broker/bundler; images clawmates/*; env prefix
  CLAWMATES_* (+ CM_TEST_DATABASE_URL / CM_LIVE_LLM); config
  clawmates.toml; helm chart deploy/helm/clawmates with clawmates-*
  resources; db names clawmates*; sockets /run/clawmates; cookie
  cm_session; kind cluster clawmates-test; seccomp node profile
  clawmates-agent-profile.json
- All 9 Playwright brand assertions updated in lockstep; historical
  spec document left untouched as the only remaining 'TeamClaw'
- Local env migrated: dev pg clawmates-dev-pg/clawmates_dev, shared
  test server clawmates-test-pg, kind cluster recreated with image +
  profile, compose images rebuilt under clawmates/*

Verified end to end: 161 Rust + 68 frontend tests, 29 Playwright
journeys, 4 live kind tests, helm/install/LOC/placeholder gates, and
the clean-room install rehearsal serving the clawmates login page from
a signed bundle of the rebuilt images.

Co-Authored-By: Claude Fable 5 <[email protected]>

crates/cm-db/src/repo/credits.rs

@@ -0,0 +1,37 @@
+use cm_domain::WorkspaceId;
+use sqlx::PgPool;
+use uuid::Uuid;
+
+use crate::DbError;
+
+/// Available credits = sum of remaining balances across all lots; credits
+/// never expire (§8.4).
+pub async fn balance(pool: &PgPool, workspace_id: WorkspaceId) -> Result<i64, DbError> {
+    let row = sqlx::query!(
+        r#"SELECT COALESCE(SUM(remaining), 0)::BIGINT AS "balance!"
+           FROM credit_lots WHERE workspace_id = $1"#,
+        workspace_id.as_uuid(),
+    )
+    .fetch_one(pool)
+    .await?;
+    Ok(row.balance)
+}
+
+pub async fn add_lot(
+    pool: &PgPool,
+    workspace_id: WorkspaceId,
+    amount: i64,
+    source: &str,
+) -> Result<(), DbError> {
+    sqlx::query!(
+        "INSERT INTO credit_lots (id, workspace_id, amount, remaining, source)
+         VALUES ($1, $2, $3, $3, $4)",
+        Uuid::now_v7(),
+        workspace_id.as_uuid(),
+        sqlx::types::BigDecimal::from(amount),
+        source,
+    )
+    .execute(pool)
+    .await?;
+    Ok(())
+}