docs(skills): update cycles and notifications skills with new subcommands

Author: Finesssee

skills/linear-cycles/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: linear-cycles
-description: View Linear sprint cycles. Use when checking current cycle or listing cycles.
+description: Manage Linear sprint cycles. Use when listing, creating, or updating cycles.
 allowed-tools: Bash
 ---
 
@@ -14,6 +14,14 @@ linear-cli c list -t ENG --output json
 # Current cycle
 linear-cli c current -t ENG
 linear-cli c current -t ENG --output json
+
+# Create cycle
+linear-cli c create -t ENG --name "Sprint 5"
+linear-cli c create -t ENG --name "Sprint 5" --starts-at 2024-01-01 --ends-at 2024-01-14
+
+# Update cycle
+linear-cli c update CYCLE_ID --name "Sprint 5b"
+linear-cli c update CYCLE_ID --description "Updated goals" --dry-run
 ```
 
 ## Flags
@@ -22,3 +30,4 @@ linear-cli c current -t ENG --output json
 |------|---------|
 | `--output json` | JSON output |
 | `--compact` | No formatting |
+| `--dry-run` | Preview without updating |

skills/linear-notifications/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: linear-notifications
-description: Manage Linear notifications. Use for viewing and clearing notifications.
+description: Manage Linear notifications. Use for viewing, reading, and archiving notifications.
 allowed-tools: Bash
 ---
 
@@ -19,6 +19,12 @@ linear-cli n read NOTIFICATION_ID
 
 # Mark all as read
 linear-cli n read-all
+
+# Archive a notification
+linear-cli n archive NOTIFICATION_ID
+
+# Archive all notifications
+linear-cli n archive-all
 ```
 
 ## Flags