feat: «Здесь» from a machine's file pane opens the terminal in that pane's folder (the agent starts the shell there; an older agent, or a folder gone, at home)

internal/server/web/static/termpane.js

@@ -262,9 +262,11 @@ window.TermKeys = (function () {
   class Session {
     // ssh, when given, is where the agent connects by SSH for this shell:
     // {host, port, user} and the secret to sign in with, sent once on open.
-    constructor(agent, ssh) {
+    // dir, for a shell on the machine, is the folder it starts in.
+    constructor(agent, ssh, dir) {
       this.agent = agent;
       this.ssh = ssh || null;
+      this.dir = dir || '';
       this.kind = ssh ? 'ssh' : 'term';
       // Where its files are, for dropped paths: the machine, or the SSH host
       // through it.
@@ -310,6 +312,7 @@ window.TermKeys = (function () {
     async open() {
       try {
         let opt = { method: 'POST' };
+        if (this.dir) opt = { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ dir: this.dir }) };
         if (this.ssh) {
           opt = { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ ssh: this.ssh }) };
           // The password or key goes once, to the agent; the page keeps no copy.
@@ -461,7 +464,7 @@ window.TermKeys = (function () {
   }
 
 
-  W.paneTypes.term = agent => new Session(agent);
+  W.paneTypes.term = (agent, opts) => new Session(agent, null, opts.dir);
   W.paneTypes.ssh = (agent, opts) => new Session(agent, opts.ssh);
   // For the touch helpers: the terminal being typed in.
   window.TermPane = {active: () => { const p = W.activePane(); return p && p.term ? p : null; }};