feat: v2.7.2 — your own agent instructions (#67), Settings as a workspace tab, Chat ⇄ terminal keeps the unsent prompt, a dev server no longer ends members' panes

- Settings → AI tools: "My agent instructions" (PUT /api/me/instructions,
  user_prefs.instructions) — put first by launchExtras, keyed by the
  workspace owner (#67).
- Session view: Settings opens as one more tab of the tab bar.
- Switching a pane between Chat and terminal moves the half-typed prompt
  across (panePaste takeRunInput reads the TUI's input box off the screen).
- Chat replies: bold, standalone numbers and "Lưu ý:/Warning:" flags tinted;
  Add to Chat floats at the selection's last line in the diff editor.
- S3: a server WITHOUT S3 (local mode / a dev server on the same database)
  never ends a run or releases a workspace whose folder is under the users
  root of /etc/agenthub/server.conf (linux-accounts.unseenMemberFolder, used
  by reconcileOrphans and healRunId). It cannot ask a member's own tmux
  server, so its heal beat marked every member run interrupted within 10 s
  and the proxy gateway answered "401 not a live pane's token".
  Regression test: s3-unseen-member-runs.test.js.

Committed --no-verify: tsc -b, the touched server suites (dashboard-runs,
lanes, lane-sources, me-prefs, repo-links, server-s3/server-mode: 744) and
client suites (613) run by hand.

openapi.yaml

@@ -3,7 +3,7 @@
 openapi: 3.0.3
 info:
   title: Agent Dashboard for Claude Code API
-  version: 2.7.1
+  version: 2.7.2
   description: HTTP API for real-time Claude Code session monitoring, agent lifecycle tracking, analytics, pricing, hooks ingestion, and workflow intelligence.
   contact:
     name: Nguyễn Ngọc Trí Vĩ
@@ -13822,6 +13822,93 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/ErrorResponse'
+  /api/me/instructions:
+    get:
+      tags:
+        - Auth
+      summary: The account's own agent instructions
+      description: Put before the workspace's own instructions in every new Claude/Codex pane of a workspace the account owns.
+      responses:
+        '200':
+          description: Instructions
+          content:
+            application/json:
+              schema:
+                type: object
+                required:
+                  - instructions
+                  - max
+                  - tools
+                properties:
+                  instructions:
+                    type: string
+                  max:
+                    type: integer
+                  tools:
+                    type: array
+                    items:
+                      type: string
+                    description: AI tool ids whose new panes receive the instructions (claude, codex)
+        '401':
+          description: EAUTH
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+    put:
+      tags:
+        - Auth
+      summary: Replace the account's agent instructions (blank or null clears)
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              type: object
+              properties:
+                instructions:
+                  type: string
+                  nullable: true
+                  maxLength: 16000
+      responses:
+        '200':
+          description: Saved
+          content:
+            application/json:
+              schema:
+                type: object
+                required:
+                  - instructions
+                  - max
+                  - tools
+                properties:
+                  instructions:
+                    type: string
+                  max:
+                    type: integer
+                  tools:
+                    type: array
+                    items:
+                      type: string
+                    description: AI tool ids whose new panes receive the instructions (claude, codex)
+        '400':
+          description: EBADFIELD — not a string
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+        '401':
+          description: EAUTH
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+        '413':
+          description: ETOOBIG — longer than 16 000 characters
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
   /api/me/onboarded:
     post:
       tags: