docs: update robot-docs manifest and agent instructions for since-last-check

Updates the `lore robot-docs` manifest with comprehensive documentation
for the new since-last-check inbox feature, enabling AI agents to
discover and use the functionality programmatically.

robot-docs manifest additions:
- since_last_check response schema with cursor_iso, groups, events
- --reset-cursor flag documentation
- Design notes: cursor persistence location, --project filter behavior
- Example commands in personal_dashboard section

Agent instruction updates (AGENTS.md, CLAUDE.md):
- Added --mrs, --project, --user flags to command examples
- Added --reset-cursor example
- Aligned both files for consistency

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

src/main.rs

@@ -2956,8 +2956,8 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
             }
         },
         "me": {
-            "description": "Personal work dashboard: open issues, authored/reviewing MRs, activity feed with computed attention states",
-            "flags": ["--issues", "--mrs", "--activity", "--since <period>", "-p/--project <path>", "--all", "--user <username>", "--fields <list|minimal>"],
+            "description": "Personal work dashboard: open issues, authored/reviewing MRs, activity feed, and cursor-based since-last-check inbox with computed attention states",
+            "flags": ["--issues", "--mrs", "--activity", "--since <period>", "-p/--project <path>", "--all", "--user <username>", "--fields <list|minimal>", "--reset-cursor"],
             "example": "lore --robot me",
             "response_schema": {
                 "ok": "bool",
@@ -2965,6 +2965,7 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
                     "username": "string",
                     "since_iso": "string?",
                     "summary": {"project_count": "int", "open_issue_count": "int", "authored_mr_count": "int", "reviewing_mr_count": "int", "needs_attention_count": "int"},
+                    "since_last_check": "{cursor_iso:string, total_event_count:int, groups:[{entity_type:string, entity_iid:int, entity_title:string, project:string, events:[{timestamp_iso:string, event_type:string, actor:string?, summary:string, body_preview:string?}]}]}?",
                     "open_issues": "[{project:string, iid:int, title:string, state:string, attention_state:string, status_name:string?, labels:[string], updated_at_iso:string, web_url:string?}]",
                     "open_mrs_authored": "[{project:string, iid:int, title:string, state:string, attention_state:string, draft:bool, detailed_merge_status:string?, author_username:string?, labels:[string], updated_at_iso:string, web_url:string?}]",
                     "reviewing_mrs": "[same as open_mrs_authored]",
@@ -2981,7 +2982,9 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
                 "event_types": "note | status_change | label_change | assign | unassign | review_request | milestone_change",
                 "section_flags": "If none of --issues/--mrs/--activity specified, all sections returned",
                 "since_default": "1d for activity feed",
-                "issue_filter": "Only In Progress / In Review status issues shown"
+                "issue_filter": "Only In Progress / In Review status issues shown",
+                "since_last_check": "Cursor-based inbox showing events since last run. Null on first run (no cursor yet). Groups events by entity (issue/MR). Sources: others' comments on your items, @mentions, assignment/review-request notes. Cursor auto-advances after each run. Use --reset-cursor to clear.",
+                "cursor_persistence": "Stored per user in ~/.local/share/lore/me_cursor_<username>.json. --project filters display only for since-last-check; cursor still advances for all projects for that user."
             }
         },
         "robot-docs": {
@@ -3013,7 +3016,7 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
             "embed: Generate vector embeddings for semantic search via Ollama",
             "cron: Automated sync scheduling (Unix)",
             "token: Secure token management with masked display",
-            "me: Personal work dashboard with attention states, activity feed, and needs-attention triage"
+            "me: Personal work dashboard with attention states, activity feed, cursor-based since-last-check inbox, and needs-attention triage"
         ],
         "read_write_split": "lore = ALL reads (issues, MRs, search, who, timeline, intelligence). glab = ALL writes (create, update, approve, merge, CI/CD)."
     });
@@ -3080,6 +3083,14 @@ fn handle_robot_docs(robot_mode: bool, brief: bool) -> Result<(), Box<dyn std::e
             "lore --robot sync --issue 7 -p group/project",
             "lore --robot sync --issue 7 --mr 10 -p group/project",
             "lore --robot sync --issue 7 -p group/project --preflight-only"
+        ],
+        "personal_dashboard": [
+            "lore --robot me",
+            "lore --robot me --issues",
+            "lore --robot me --activity --since 7d",
+            "lore --robot me --project group/repo",
+            "lore --robot me --fields minimal",
+            "lore --robot me --reset-cursor"
         ]
     });