feat: devex/hatchet log progress track (#813)

* progress track for some hatchet tasks

* remove inline imports / type fixes

* progress callback for mixdown - move to a function

---------

Co-authored-by: Igor Loskutov <igor.loskutoff@gmail.com>

server/reflector/hatchet/constants.py

@@ -2,6 +2,31 @@
 Hatchet workflow constants.
 """
 
+from enum import StrEnum
+
+
+class TaskName(StrEnum):
+    GET_RECORDING = "get_recording"
+    GET_PARTICIPANTS = "get_participants"
+    PROCESS_TRACKS = "process_tracks"
+    MIXDOWN_TRACKS = "mixdown_tracks"
+    GENERATE_WAVEFORM = "generate_waveform"
+    DETECT_TOPICS = "detect_topics"
+    GENERATE_TITLE = "generate_title"
+    EXTRACT_SUBJECTS = "extract_subjects"
+    PROCESS_SUBJECTS = "process_subjects"
+    GENERATE_RECAP = "generate_recap"
+    IDENTIFY_ACTION_ITEMS = "identify_action_items"
+    FINALIZE = "finalize"
+    CLEANUP_CONSENT = "cleanup_consent"
+    POST_ZULIP = "post_zulip"
+    SEND_WEBHOOK = "send_webhook"
+    PAD_TRACK = "pad_track"
+    TRANSCRIBE_TRACK = "transcribe_track"
+    DETECT_CHUNK_TOPIC = "detect_chunk_topic"
+    GENERATE_DETAILED_SUMMARY = "generate_detailed_summary"
+
+
 # Rate limit key for LLM API calls (shared across all LLM-calling tasks)
 LLM_RATE_LIMIT_KEY = "llm"