fix(databases): restore -d/--database on context, queries, results

The reorg re-parented `context`/`queries`/`results` under `databases` but the
explicit database target regressed vs 0.26.0:
- `databases context {list,show,pull,push}` had no way to target a database —
  active-database only.
- `databases queries list` / `databases results {get,list}` rejected `-d` after
  the subcommand; the group-level `database` was only reachable before it
  (`databases queries -d X list`), not the expected `... list -d X`.

Make the group `database` arg `global = true` on queries/results (the dispatch
already threads it), and add a `-d/--database` (global) to `context` wired into
its dispatch (explicit override, else the active database). Standardizes on
`--database` (the reorg's convention) rather than the old `--database-id`.

Verified: `context/queries/results list -d <db>` now byte-match the installed
0.26.0's `--database`/`--database-id` output.

Author: eddietejeda

src/commands/databases.rs

@@ -196,6 +196,10 @@ pub enum DatabasesCommands {
 
     /// Sync database context with local Markdown
     Context {
+        /// Managed database to scope to (defaults to the current database)
+        #[arg(long, short = 'd', global = true)]
+        database: Option<String>,
+
         #[command(subcommand)]
         command: crate::commands::context::ContextCommands,
     },
@@ -228,7 +232,7 @@ pub enum DatabasesCommands {
         id: Option<String>,
 
         /// Managed database to scope to (defaults to the current database)
-        #[arg(long, short = 'd')]
+        #[arg(long, short = 'd', global = true)]
         database: Option<String>,
 
         /// Output format
@@ -245,7 +249,7 @@ pub enum DatabasesCommands {
         result_id: Option<String>,
 
         /// Managed database to scope to (defaults to the current database)
-        #[arg(long, short = 'd')]
+        #[arg(long, short = 'd', global = true)]
         database: Option<String>,
 
         /// Output format

src/main.rs

@@ -408,15 +408,17 @@ fn main() {
                                 }
                             }
                         },
-                        Some(DatabasesCommands::Context { command }) => {
-                            let database_id =
-                                config::load_current_database("default", &workspace_id)
-                                    .unwrap_or_else(|| {
-                                        eprintln!(
-                                            "error: no active database. Use 'hotdata databases use <id>' to set one."
-                                        );
-                                        std::process::exit(1);
-                                    });
+                        Some(DatabasesCommands::Context { database, command }) => {
+                            let database_id = database
+                                .or_else(|| {
+                                    config::load_current_database("default", &workspace_id)
+                                })
+                                .unwrap_or_else(|| {
+                                    eprintln!(
+                                        "error: no active database. Pass -d/--database <id> or set one with 'hotdata databases use <id>'."
+                                    );
+                                    std::process::exit(1);
+                                });
                             match command {
                                 ContextCommands::List { output, prefix } => context::list(
                                     &workspace_id,