feat(cli): status display/filtering, expanded --fields, and robot-docs --brief

Work item status integration across all CLI output:

Issue listing (lore list issues):
- New Status column appears when any issue has status data, with
  hex-color rendering using ANSI 256-color approximation
- New --status flag for case-insensitive filtering (OR logic for
  multiple values): lore issues --status "In progress" --status "To do"
- Status fields (name, category, color, icon_name, synced_at) in issue
  list query and JSON output with conditional serialization

Issue detail (lore show issue):
- Displays "Status: In progress (in_progress)" with color-coded output
  using ANSI 256-color approximation from hex color values
- Status fields included in robot mode JSON with ISO timestamps
- IssueRow, IssueDetail, IssueDetailJson all carry status columns

Robot mode field selection expanded to new commands:
- search: --fields with "minimal" preset (document_id, title, source_type, score)
- timeline: --fields with "minimal" preset (timestamp, type, entity_iid, detail)
- who: --fields with per-mode presets (expert_minimal, workload_minimal, etc.)
- robot-docs: new --brief flag strips response_schema from output (~60% smaller)
- strip_schemas() utility in robot.rs for --brief mode
- expand_fields_preset() extended for search, timeline, and all who modes

Robot-docs manifest updated with --status flag documentation, --fields
flags for search/timeline/who, fields_presets sections, and corrected
search response schema field names.

Note: replaces empty commit dcfd449 which lost staging during hook execution.

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

src/cli/mod.rs

@@ -186,7 +186,11 @@ pub enum Commands {
 
     /// Machine-readable command manifest for agent self-discovery
     #[command(name = "robot-docs")]
-    RobotDocs,
+    RobotDocs {
+        /// Omit response_schema from output (~60% smaller)
+        #[arg(long)]
+        brief: bool,
+    },
 
     /// Generate shell completions
     #[command(long_about = "Generate shell completions for lore.\n\n\
@@ -315,6 +319,10 @@ pub struct IssuesArgs {
     #[arg(short = 'm', long, help_heading = "Filters")]
     pub milestone: Option<String>,
 
+    /// Filter by work-item status name (repeatable, OR logic)
+    #[arg(long, help_heading = "Filters")]
+    pub status: Vec<String>,
+
     /// Filter by time (7d, 2w, 1m, or YYYY-MM-DD)
     #[arg(long, help_heading = "Filters")]
     pub since: Option<String>,
@@ -563,6 +571,10 @@ pub struct SearchArgs {
     )]
     pub limit: usize,
 
+    /// Select output fields (comma-separated, or 'minimal' preset: document_id,title,source_type,score)
+    #[arg(long, help_heading = "Output", value_delimiter = ',')]
+    pub fields: Option<Vec<String>>,
+
     /// Show ranking explanation per result
     #[arg(long, help_heading = "Output", overrides_with = "no_explain")]
     pub explain: bool,
@@ -682,6 +694,10 @@ pub struct TimelineArgs {
     )]
     pub limit: usize,
 
+    /// Select output fields (comma-separated, or 'minimal' preset: timestamp,type,entity_iid,detail)
+    #[arg(long, help_heading = "Output", value_delimiter = ',')]
+    pub fields: Option<Vec<String>>,
+
     /// Maximum seed entities from search
     #[arg(long = "max-seeds", default_value = "10", help_heading = "Expansion")]
     pub max_seeds: usize,
@@ -752,6 +768,10 @@ pub struct WhoArgs {
     )]
     pub limit: u16,
 
+    /// Select output fields (comma-separated, or 'minimal' preset; varies by mode)
+    #[arg(long, help_heading = "Output", value_delimiter = ',')]
+    pub fields: Option<Vec<String>>,
+
     /// Show per-MR detail breakdown (expert mode only)
     #[arg(long, help_heading = "Output", overrides_with = "no_detail")]
     pub detail: bool,