feat: lazygit-style actions, non-blocking execution, and UX improvements

- Replace two-step action system with lazygit-style Ctrl+key shortcuts
  and Shift+A interactive action menu with j/k navigation
- Make action execution non-blocking by spawning CLI/HTTP actions in
  background tokio tasks, keeping the TUI responsive during long-running
  commands like kubectl delete with graceful termination
- Show animated spinner in confirmation dialog while action executes,
  or top-right overlay for actions without confirmation
- Add column-specific search with %column_name% delimiter syntax
- Add --version flag to CLI
- Update docs, examples, and skill config for new action key format

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: pa

.claude/skills/termstack-yaml-generator/SKILL.md

@@ -68,7 +68,7 @@ pages:
       context:
         item_id: "$.id"
     actions:
-      - key: "d"
+      - key: "ctrl+d"
         name: "Details"
         page: "detail_page"
         context:
@@ -228,56 +228,36 @@ next:
 
 ### 4. Actions
 
-Actions are triggered by pressing `a` then the action key:
+Actions are triggered via the Shift+A menu or direct Ctrl+key shortcuts:
 
 ```yaml
 actions:
   # Execute command
-  - key: "d"
+  - key: "ctrl+d"
     name: "Delete"
     description: "Delete this item"
     confirm: "Are you sure you want to delete {{ name }}?"
     command: "curl"
     args: ["-X", "DELETE", "{{ api_base }}/items/{{ id }}"]
     refresh: true
-    
+
   # Navigate to page
-  - key: "v"
+  - key: "ctrl+v"
     name: "View Details"
     page: "detail_page"
     context:
       item_id: "$.id"
-      
+
   # Open in external app
-  - key: "o"
+  - key: "ctrl+o"
     name: "Open in Browser"
     command: "open"
     args: ["{{ html_url }}"]
-    
-  # Builtin actions
-  - key: "y"
+
+  # Builtin action (yaml_view is useful as a custom action)
+  - key: "ctrl+y"
     name: "YAML View"
     builtin: yaml_view
-    
-  - key: "h"
-    name: "Help"
-    builtin: help
-    
-  - key: "s"
-    name: "Search"
-    builtin: search
-    
-  - key: "r"
-    name: "Refresh"
-    builtin: refresh
-    
-  - key: "b"
-    name: "Back"
-    builtin: back
-    
-  - key: "q"
-    name: "Quit"
-    builtin: quit
 ```
 
 ### 5. Multiple Data Sources
@@ -333,12 +313,12 @@ detail:
     url: "{{ api_base }}/users/{{ user_id }}"
 ```
 
-#### B. Action Navigation (a + key) - Uses Templates
+#### B. Action Navigation (Shift+A menu / Ctrl+key) - Uses Templates
 
 ```yaml
 # Source page - action context ACCEPTS template expressions
 actions:
-  - key: "d"
+  - key: "ctrl+d"
     page: detail
     context:
       user_id: "{{ id }}"                    # ✅ Template - from current row
@@ -404,7 +384,7 @@ data:
 
 # Navigate to logs
 actions:
-  - key: "l"
+  - key: "ctrl+l"
     page: pod_logs
     context:
       pod_name: "{{ metadata.name }}"      # Template - from current pod
@@ -605,7 +585,7 @@ pages:
         breed_id: "$.id"
         breed_name: "$.attributes.name"
     actions:
-      - key: "f"
+      - key: "ctrl+f"
         name: "View Facts"
         page: "facts"
 
@@ -703,7 +683,7 @@ pages:
         pod_name: "$.metadata.name"       # JSONPath for next navigation
         pod_namespace: "$.metadata.namespace"
     actions:
-      - key: "l"
+      - key: "ctrl+l"
         name: "View Logs"
         page: "pod_logs"
         context:
@@ -946,11 +926,11 @@ curl -fsSL https://github.com/pa/termstack/releases/latest/download/termstack-li
 
 - `Enter` - Navigate to next page (defined by `next`)
 - `Esc` - Go back
-- `a` + key - Trigger action
+- `Shift+A` - Open action menu
 - `j`/`k` or arrows - Move up/down
 - `g` - Go to top
 - `G` - Go to bottom
-- `/` - Search
+- `/` - Search (use `%Column Name% term` for column-specific search)
 - `q` - Quit
 - `r` - Refresh data
 - `f` - Toggle filter (in logs view)
@@ -984,7 +964,7 @@ data:
 
 # ✅ CORRECT - Pass namespace explicitly in context
 actions:
-  - key: "l"
+  - key: "ctrl+l"
     page: pod_logs
     context:
       pod_name: "{{ metadata.name }}"
@@ -1014,13 +994,13 @@ next:
 
 # ❌ WRONG - JSONPath in action.context
 actions:
-  - key: "d"
+  - key: "ctrl+d"
     context:
       name: "$.metadata.name"  # Won't work!
 
 # ✅ CORRECT - Template in action.context
 actions:
-  - key: "d"
+  - key: "ctrl+d"
     context:
       name: "{{ metadata.name }}"
 ```
@@ -1062,7 +1042,7 @@ title: "Pods in {{ namespace }}"  # Use extracted value
 
 # Check 1: Was it passed in context?
 actions:
-  - key: "l"
+  - key: "ctrl+l"
     context:
       pod_name: "{{ metadata.name }}"  # ✅ Passed
 

README.md

@@ -32,7 +32,7 @@ Think of it as "k9s for anything" — Kubernetes, REST APIs, dog breeds (yes, re
 
 ## Demo
 
-[![asciicast](https://asciinema.org/a/777358.svg)](https://asciinema.org/a/777358)
+[![asciicast](https://asciinema.org/a/ozYJrUw1VZIpptEI.svg)](https://asciinema.org/a/ozYJrUw1VZIpptEI)
 
 *Click to view the interactive terminal recording - you can pause, copy text, and replay at your own pace!*
 
@@ -396,17 +396,17 @@ next:
 
 ### Actions
 
-Press `a` to enter action mode, then the action key:
+Press `Shift+A` to open the action menu, or use `Ctrl+key` shortcuts directly:
 
 ```yaml
 actions:
-  - key: "d"
+  - key: "ctrl+d"
     name: "Delete"
     confirm: "Really delete {{ name }}? (no undo!)"
     command: "kubectl"
     args: ["delete", "pod", "{{ name }}"]
     refresh: true
-  - key: "v"
+  - key: "ctrl+v"
     name: "View Details"
     page: "detail_page"
 ```
@@ -451,8 +451,8 @@ transform: "{{ value | upper }}"  # "SHOUTING"
 | `G` | Go to bottom |
 | `Enter` | Select / Navigate |
 | `Esc` | Go back |
-| `/` | Search |
-| `a` | Action mode |
+| `/` | Search (`%col% term` for column) |
+| `Shift+A` | Action menu |
 | `r` | Refresh |
 | `q` | Quit |
 
@@ -527,7 +527,7 @@ A: Make sure your data source is accessible. Try `--verbose` for debug output.
 
 **Q: Actions aren't triggering!**
 
-A: Press `a` first to enter action mode, then your action key.
+A: Press `Shift+A` to open the action menu, or use `Ctrl+key` shortcuts directly.
 
 **Q: Can I use this in production?**