fix(db): drop dead host/port args from ssh_db

creds() in the ssh_db dispatcher forwarded host and port to all four
db handlers, and the ssh_db inputSchema declared them -- but no
db-tools handler or command builder reads either. buildMongoConnectionUri
is the only place with host/port parameters and its sole caller never
passes them, so every db op always hits the local socket. A caller
passing host/port for a remote DB silently got the local one.

Remove host/port from creds() and from the ssh_db inputSchema, and
drop the host/port assertions from the dispatcher test (user/password
forwarding still covered). Not wired through -- that is a feature,
out of scope. Re-add only alongside a handler that honors them.

Author: hunchom

src/dispatchers/ssh-db.js

@@ -19,15 +19,16 @@ const REQUIRED = {
 };
 
 // Args common to every db handler: connection-target credentials.
+// No host/port: every db-tools handler hits the local socket -- forwarding
+// them was dead + misleading (a caller's remote host/port was silently
+// ignored). Re-add only alongside a handler that actually honors them.
 function creds(a) {
   return {
     server: a.server,
     db_type: a.db_type,
     database: a.database,
     user: a.user,
     password: a.password,
-    host: a.host,
-    port: a.port,
     format: a.format,
   };
 }

src/index.js

@@ -683,8 +683,6 @@ registerToolConditional('ssh_db', {
     gzip: z.boolean().optional().describe('Gzip the dump (action: dump)'),
     user: z.string().optional().describe('Database user'),
     password: z.string().optional().describe('Database password'),
-    host: z.string().optional().describe('Database host'),
-    port: z.number().optional().describe('Database port'),
     preview: z.boolean().optional().describe('Show the plan without importing (action: import)'),
     format: FORMAT,
   },

tests/test-dispatcher-db.js

@@ -82,14 +82,12 @@ await test('db credential args are forwarded', async () => {
     deps: DEPS, handlers: { query },
     args: {
       server: 's', action: 'query', database: 'app', query: 'SELECT 1', db_type: 'mysql',
-      user: 'u', password: 'p', host: 'h', port: 5432,
+      user: 'u', password: 'p',
     },
   });
   const fwd = query.calls[0].args;
   assert.strictEqual(fwd.user, 'u');
   assert.strictEqual(fwd.password, 'p');
-  assert.strictEqual(fwd.host, 'h');
-  assert.strictEqual(fwd.port, 5432);
 });
 
 await test('query missing query -> structured fail, handler not called', async () => {