feat(browser-agent): Add persistent browser session mode (v0.5.0)

Keep the browser alive between workflow runs to avoid repeated logins
and bot detection. Adds server mode to Python executor (NDJSON over
stdin/stdout), PersistentScriptExecutor in Rust, and a config toggle.

- Python: --server-mode flag for persistent NDJSON protocol
- Rust: PersistentScriptExecutor with start/execute/stop lifecycle
- Rust: Tauri commands for persistent session management
- Config: persistent_browser_session toggle in config.yaml and UI
- Activity poller: auto-uses persistent executor when config enabled
- Templates: navigate back to AddressHome after extraction
- Examples: add 06_bt_broadband_template_test.json

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: guyernest

lambda/tools/local-browser-agent/examples/03_bt_broadband_bournemouth.json

@@ -68,7 +68,7 @@
                     "strategy": "selector",
                     "value": "input[type='text'][name*='user'], input[type='email']"
                   },
-                  "value": "{{username}}"
+                  "value": "nterizakis"
                 }
               ]
             },
@@ -81,7 +81,7 @@
                     "strategy": "selector",
                     "value": "input[type='text']:first-of-type"
                   },
-                  "value": "{{username}}"
+                  "value": "nterizakis"
                 }
               ]
             }
@@ -455,10 +455,18 @@
             }
           ]
         },
+        {
+          "action": "wait",
+          "description": "Random delay before search to avoid bot detection",
+          "duration_range": [
+            1500,
+            3500
+          ]
+        },
         {
           "type": "try",
           "name": "ClickSearch",
-          "description": "Click search button - includes retry for temporary 'service unavailable' errors",
+          "description": "Click search button - includes retry for temporary 'checker is unavailable' errors",
           "strategies": [
             {
               "name": "Strategy 1: Submit button with retry",
@@ -471,10 +479,10 @@
                   },
                   "delay": 500,
                   "retry": {
-                    "attempts": 3,
-                    "delay_ms": 1000,
+                    "attempts": 5,
+                    "delay_ms": 5000,
                     "retry_if": {
-                      "text_visible": "service unavailable"
+                      "text_visible": "checker is unavailable"
                     }
                   }
                 }
@@ -491,10 +499,10 @@
                   },
                   "delay": 500,
                   "retry": {
-                    "attempts": 3,
-                    "delay_ms": 1000,
+                    "attempts": 5,
+                    "delay_ms": 5000,
                     "retry_if": {
-                      "text_visible": "service unavailable"
+                      "text_visible": "checker is unavailable"
                     }
                   }
                 }
@@ -505,6 +513,28 @@
         {
           "action": "wait_for_load_state",
           "state": "networkidle"
+        },
+        {
+          "action": "wait",
+          "description": "Wait for search results or error message to appear",
+          "duration": 2000
+        },
+        {
+          "type": "if",
+          "name": "CheckSearchServiceAvailable",
+          "description": "Detect if BT checker returned 'unavailable' error after search submit",
+          "condition": {
+            "type": "element_visible",
+            "selector": "text=checker is unavailable",
+            "timeout": 1000
+          },
+          "then": {
+            "action": "error",
+            "message": "BT Checker service unavailable - the checker returned: 'We are sorry but the checker is unavailable at the moment. Please try again later.'"
+          },
+          "else": {
+            "continue": true
+          }
         }
       ],
       "next": "SelectAddress"
@@ -520,39 +550,39 @@
           "description": "Progressive address matching: regex -> fuzzy -> vision with scroll",
           "strategies": [
             {
-              "name": "Strategy 1: Regex - building + first word only",
+              "name": "Strategy 1: Regex - building (with range) + first word only",
               "steps": [
                 {
                   "action": "click",
                   "locator": {
                     "strategy": "selector",
-                    "value": "text=/^\\s*143\\s+\\w+/i",
+                    "value": "text=/^\\s*(?:\\d+-)?143(?:-\\d+)?[A-Za-z]?\\s+\\w+/i",
                     "nth": 0
                   }
                 }
               ]
             },
             {
-              "name": "Strategy 2: Regex - building + street flexible",
+              "name": "Strategy 2: Regex - building (with range) + street flexible",
               "steps": [
                 {
                   "action": "click",
                   "locator": {
                     "strategy": "selector",
-                    "value": "text=/143[\\s,]+Belle Vue Road/i",
+                    "value": "text=/(?:\\d+-)?143(?:-\\d+)?[A-Za-z]?[\\s,]+Belle Vue Road/i",
                     "nth": 0
                   }
                 }
               ]
             },
             {
-              "name": "Strategy 3: Regex - street anywhere after building",
+              "name": "Strategy 3: Regex - building (with range) + street anywhere",
               "steps": [
                 {
                   "action": "click",
                   "locator": {
                     "strategy": "selector",
-                    "value": "text=/143.*Belle Vue Road/i",
+                    "value": "text=/(?:\\d+-)?143(?:-\\d+)?[A-Za-z]?.*Belle Vue Road/i",
                     "nth": 0
                   }
                 }
@@ -583,13 +613,16 @@
         },
         {
           "action": "wait",
-          "description": "Wait before clicking submit to avoid bot detection",
-          "duration": 500
+          "description": "Random delay before submit to avoid bot detection",
+          "duration_range": [
+            1500,
+            3500
+          ]
         },
         {
           "type": "try",
           "name": "ClickContinueAfterAddress",
-          "description": "Click submit with retry for 'service unavailable' errors",
+          "description": "Click submit with retry for 'checker is unavailable' errors",
           "strategies": [
             {
               "name": "Strategy 1: Submit button with retry",
@@ -603,9 +636,9 @@
                   "delay": 300,
                   "retry": {
                     "attempts": 5,
-                    "delay_ms": 3000,
+                    "delay_ms": 5000,
                     "retry_if": {
-                      "text_visible": "service unavailable"
+                      "text_visible": "checker is unavailable"
                     }
                   }
                 }
@@ -623,9 +656,9 @@
                   "delay": 300,
                   "retry": {
                     "attempts": 5,
-                    "delay_ms": 3000,
+                    "delay_ms": 5000,
                     "retry_if": {
-                      "text_visible": "service unavailable"
+                      "text_visible": "checker is unavailable"
                     }
                   }
                 }
@@ -661,7 +694,7 @@
                 {
                   "action": "wait_for_selector",
                   "selector": ".ExhangeCodeSetup",
-                  "timeout": 15000
+                  "timeout": 30000
                 }
               ]
             },
@@ -679,7 +712,7 @@
                 {
                   "action": "wait_for_selector",
                   "selector": "th:has-text('Featured Products')",
-                  "timeout": 20000
+                  "timeout": 30000
                 }
               ]
             },
@@ -768,9 +801,18 @@
               "fallback_js": "(() => { const rows = document.querySelectorAll('tr'); for (const r of rows) { const th = r.querySelector('th'); if (th && th.textContent.includes('Premise Type')) { const td = r.querySelector('td'); return td ? td.textContent.trim() : null; } } return null; })()"
             }
           ]
+        },
+        {
+          "action": "navigate",
+          "url": "https://bbactotl.btwholesale.com/bbac-ui/totl/totlSearch/#/ADSL/AddressHome",
+          "description": "Navigate back to search page for next run"
+        },
+        {
+          "action": "wait_for_load_state",
+          "state": "networkidle"
         }
       ],
       "end": true
     }
   ]
-}
+}