feat(analysis): add technical analysis module and stocks technical command

- Add analysis module: SMA, EMA, RSI(14), MACD(12,26,9), volume ratio
- Add signal interpretation: bullish/bearish/neutral with consensus voting
- Wire up 'stocks technical <SYMBOL>' CLI subcommand
- Table output with colored signals + JSON output support
- Cache/offline/stale-cache fallback (same pattern as quote/history)
- Fetch 1 year of daily data for SMA200 coverage (~250 trading days)
- Add TechnicalReport, MacdSnapshot, VolumeSnapshot structs
- Add 4 new unit tests + 3 integration tests (30 total passing)

tests/cli.rs

@@ -1,10 +1,10 @@
 use std::fs;
 
-use assert_cmd::{Command, cargo::cargo_bin};
+use assert_cmd::Command;
 use predicates::prelude::*;
 
 fn bin() -> Command {
-    Command::new(cargo_bin("idx-cli"))
+    Command::new(assert_cmd::cargo::cargo_bin!("idx-cli"))
 }
 
 fn test_env_dir(name: &str) -> std::path::PathBuf {
@@ -64,6 +64,30 @@ fn history_with_mock_provider_table_contains_columns() {
         .stdout(predicate::str::contains("VOLUME"));
 }
 
+#[test]
+fn technical_with_mock_provider_table_contains_expected_rows() {
+    bin()
+        .env("IDX_USE_MOCK_PROVIDER", "1")
+        .args(["stocks", "technical", "BBCA"])
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("Technical Analysis for"))
+        .stdout(predicate::str::contains("RSI (14)"))
+        .stdout(predicate::str::contains("Overall Signal"));
+}
+
+#[test]
+fn technical_with_mock_provider_json_contains_fields() {
+    bin()
+        .env("IDX_USE_MOCK_PROVIDER", "1")
+        .args(["-o", "json", "stocks", "technical", "BBCA"])
+        .assert()
+        .success()
+        .stdout(predicate::str::contains("\"symbol\""))
+        .stdout(predicate::str::contains("\"sma20\""))
+        .stdout(predicate::str::contains("\"signals\""));
+}
+
 #[test]
 fn config_path_prints_path() {
     bin()
@@ -129,6 +153,30 @@ fn serves_stale_cache_on_provider_failure_with_warning() {
         .stderr(predicate::str::contains("warning: network failed"));
 }
 
+#[test]
+fn technical_serves_stale_cache_on_provider_failure_with_warning() {
+    let root = test_env_dir("technical-stale");
+    let cache_home = root.join("cache");
+
+    bin()
+        .env("XDG_CACHE_HOME", &cache_home)
+        .env("IDX_USE_MOCK_PROVIDER", "1")
+        .env("IDX_CACHE_QUOTE_TTL", "0")
+        .args(["stocks", "technical", "BBCA"])
+        .assert()
+        .success();
+
+    bin()
+        .env("XDG_CACHE_HOME", &cache_home)
+        .env("IDX_USE_MOCK_PROVIDER", "1")
+        .env("IDX_CACHE_QUOTE_TTL", "0")
+        .env("IDX_MOCK_ERROR", "1")
+        .args(["stocks", "technical", "BBCA"])
+        .assert()
+        .success()
+        .stderr(predicate::str::contains("warning: network failed"));
+}
+
 #[test]
 fn invalid_symbol_returns_non_zero() {
     bin()