feat: migrate to Bun-native, fix Planner task dates, remove hardcoded test values

- Remove dotenv dependency, implement lightweight Bun-native env loader
- Replace Node.js fs/path with Bun file APIs (Bun.file, Bun.write)
- Fix Planner task creation to use form's due date with proper UTC handling
- Make table name, Planner assignee configurable via activeConfig and env vars
- Remove all hardcoded test values for PROD readiness
- Update NOTES.md with PROD mode checklist

NOTES.md

@@ -0,0 +1,42 @@
+# Session Notes
+
+## 2026-01-07
+
+### Context
+- Picked up the Job-Form project
+- Stack: TypeScript server, HTML frontend with TailwindCSS
+- Current version: v1.0.0-beta4
+
+### Project Summary
+- **Purpose**: Job creation form with Excel sync and PocketBase backend
+- **Features**: 
+  - Form submission → PocketBase record → Excel sync
+  - Teams channel notifications (Adaptive Cards)
+  - Teams message management UI
+
+### Known Issues / Limitations
+- Teams message deletion not supported via Graph API (HTTP 405) — platform limitation
+- Workaround: Delete messages directly in Teams client
+
+### Today's Work
+- [x] Migrate to full Bun-native stack (removed dotenv, use Bun file APIs)
+- [x] Fix Planner task creation to use form's due date with proper UTC handling
+- [x] Remove hardcoded test values — now uses activeConfig for all environments
+- [x] Make assignee configurable via `PLANNER_ASSIGNEE_ID` env var
+
+### PROD Mode Checklist
+Before switching `MODE = 'PROD'`, ensure `/home/admin/secrets/.env` contains:
+- `PB_COLLECTION` - PocketBase collection name (e.g., `Job_Info_Prod`)
+- `EXCEL_TABLE_NAME` - Excel table name (e.g., `Job_List`)
+- `PLANNER_GROUP_ID` - Microsoft Planner group ID
+- `PLANNER_PLAN_ID` - Microsoft Planner plan ID
+- `PLANNER_BUCKET_ID` - Microsoft Planner bucket ID
+- `PLANNER_ASSIGNEE_ID` - User ID for Planner task assignee (e.g., `1a6e9d10-138a-43e4-a09e-1f50463148c9`)
+- `PLANNER_ASSIGNEE_NAME` - Display name for assignee (e.g., `Alex Ewing`)
+- All standard Azure AD + PocketBase creds (CLIENT_ID, CLIENT_SECRET, etc.)
+
+**No hardcoded test values remain in the codebase.**
+
+---
+
+_Last updated: 2026-01-07_

inspect-tables.ts

@@ -1,8 +1,29 @@
 
-import { config } from 'dotenv';
 import { Client } from '@microsoft/microsoft-graph-client';
 
-config({ path: '/home/admin/secrets/.env' });
+// Bun-native env loader
+async function loadEnv(filePath: string) {
+  const file = Bun.file(filePath);
+  if (!(await file.exists())) {
+    console.warn(`⚠ Env file not found: ${filePath}`);
+    return;
+  }
+  const text = await file.text();
+  for (const line of text.split('\n')) {
+    const trimmed = line.trim();
+    if (!trimmed || trimmed.startsWith('#')) continue;
+    const eqIndex = trimmed.indexOf('=');
+    if (eqIndex === -1) continue;
+    const key = trimmed.slice(0, eqIndex).trim();
+    let value = trimmed.slice(eqIndex + 1).trim();
+    if ((value.startsWith('"') && value.endsWith('"')) || (value.startsWith("'") && value.endsWith("'"))) {
+      value = value.slice(1, -1);
+    }
+    process.env[key] = value;
+  }
+}
+
+await loadEnv('/home/admin/secrets/.env');
 
 async function getGraphToken() {
   const tokenEndpoint = `https://login.microsoftonline.com/${process.env.TENANT_ID}/oauth2/v2.0/token`;

package.json

@@ -9,7 +9,6 @@
   },
   "dependencies": {
     "@microsoft/microsoft-graph-client": "^3.0.7",
-    "dotenv": "^17.2.3",
     "hono": "^4.10.8",
     "pocketbase": "^0.26.5"
   },