feat(timeline): add entity-direct seeding (issue:N, mr:N syntax)

Adds issue:N / i:N / mr:N / m:N query syntax to bypass hybrid search
and seed the timeline directly from a known entity. All discussions for
the entity are gathered without needing Ollama.

- parse_timeline_query() detects entity-direct patterns
- resolve_entity_by_iid() resolves IID to EntityRef with ambiguity handling
- seed_timeline_direct() gathers all discussions for the entity
- 20 new tests (5 resolve, 6 direct seed, 9 parse)
- Updated CLI help text and robot-docs manifest

src/cli/mod.rs

@@ -10,6 +10,7 @@ use std::io::IsTerminal;
 #[command(name = "lore")]
 #[command(version = env!("LORE_VERSION"), about = "Local GitLab data management with semantic search", long_about = None)]
 #[command(subcommand_required = false)]
+#[command(infer_subcommands = true)]
 #[command(after_long_help = "\x1b[1mEnvironment:\x1b[0m
   GITLAB_TOKEN       GitLab personal access token (or name set in config)
   LORE_ROBOT         Enable robot/JSON mode (non-empty, non-zero value)
@@ -107,12 +108,19 @@ impl Cli {
 #[allow(clippy::large_enum_variant)]
 pub enum Commands {
     /// List or show issues
+    #[command(visible_alias = "issue")]
     Issues(IssuesArgs),
 
     /// List or show merge requests
+    #[command(
+        visible_alias = "mr",
+        alias = "merge-requests",
+        alias = "merge-request"
+    )]
     Mrs(MrsArgs),
 
     /// List notes from discussions
+    #[command(visible_alias = "note")]
     Notes(NotesArgs),
 
     /// Ingest data from GitLab
@@ -122,6 +130,7 @@ pub enum Commands {
     Count(CountArgs),
 
     /// Show sync state
+    #[command(visible_alias = "st")]
     Status,
 
     /// Verify GitLab authentication
@@ -170,9 +179,11 @@ pub enum Commands {
     },
 
     /// Search indexed documents
+    #[command(visible_alias = "find", alias = "query")]
     Search(SearchArgs),
 
     /// Show document and index statistics
+    #[command(visible_alias = "stat")]
     Stats(StatsArgs),
 
     /// Generate searchable documents from ingested data
@@ -794,11 +805,14 @@ pub struct EmbedArgs {
 
 #[derive(Parser)]
 #[command(after_help = "\x1b[1mExamples:\x1b[0m
-  lore timeline 'deployment'                          # Events related to deployments
+  lore timeline 'deployment'                          # Search-based seeding
+  lore timeline issue:42                              # Direct: issue #42 and related entities
+  lore timeline i:42                                  # Shorthand for issue:42
+  lore timeline mr:99                                 # Direct: MR !99 and related entities
   lore timeline 'auth' --since 30d -p group/repo      # Scoped to project and time
   lore timeline 'migration' --depth 2 --expand-mentions  # Deep cross-reference expansion")]
 pub struct TimelineArgs {
-    /// Search query (keywords to find in issues, MRs, and discussions)
+    /// Search text or entity reference (issue:N, i:N, mr:N, m:N)
     pub query: String,
 
     /// Scope to a specific project (fuzzy match)