add deepgram api key env var and config support

internal/config/convert.go

@@ -51,6 +51,9 @@ func (c *Config) resolveAPIKeyForProvider(provider string) string {
 	case "elevenlabs":
 		providerName = "elevenlabs"
 		envVar = "ELEVENLABS_API_KEY"
+	case "deepgram":
+		providerName = "deepgram"
+		envVar = "DEEPGRAM_API_KEY"
 	}
 
 	if c.Providers != nil {

internal/config/save.go

@@ -46,6 +46,8 @@ keywords = []
 #   api_key = ""               # Mistral API key (or set MISTRAL_API_KEY env var)
 # [providers.elevenlabs]
 #   api_key = ""               # ElevenLabs API key (or set ELEVENLABS_API_KEY env var)
+# [providers.deepgram]
+#   api_key = ""               # Deepgram API key (or set DEEPGRAM_API_KEY env var)
 
 # ─────────────────────────────────────────────────────────────────────────────
 # Audio Recording

internal/tui/configure.go

@@ -17,7 +17,7 @@ type ConfigureResult struct {
 }
 
 // AllProviders is the list of all supported cloud providers (require API keys)
-var AllProviders = []string{"openai", "groq", "mistral", "elevenlabs"}
+var AllProviders = []string{"openai", "groq", "mistral", "elevenlabs", "deepgram"}
 
 // LocalProviders is the list of local providers (no API key required)
 var LocalProviders = []string{"whisper-cpp"}
@@ -28,6 +28,7 @@ var providerDisplayNames = map[string]string{
 	"groq":        "Groq",
 	"mistral":     "Mistral",
 	"elevenlabs":  "ElevenLabs",
+	"deepgram":    "Deepgram",
 	"whisper-cpp": "Whisper.cpp (local)",
 }
 

progress.txt

@@ -418,3 +418,10 @@ Started: Sun Feb  1 12:22:47 AM CET 2026
 - Updated tests: streaming models now succeed (not error)
 - Added tests for deepgram and openai-realtime streaming models
 - All tests passing with -race flag, typecheck passes
+
+### Task 43: Add DEEPGRAM_API_KEY env var support
+- Added `case "deepgram"` to `resolveAPIKeyForProvider()` in convert.go
+- Maps to providerName="deepgram" and envVar="DEEPGRAM_API_KEY"
+- Updated config template in save.go with commented deepgram section
+- Added "deepgram" to AllProviders and providerDisplayNames in configure.go for TUI
+- All tests passing, typecheck passes

tasks/prd.jsonc

@@ -1007,7 +1007,7 @@
 			"Config template includes deepgram section",
 			"Typecheck passes"
 		],
-			"passes": false
+		"passes": true
 	},
 		// ============================================================================
 		// PHASE 9: DOCUMENTATION