feat: corporate actions from the Stockbit session (stocks actions, stocks calendar)

`idx stocks actions SYM [--kind ...]`: one stock's cash and stock
dividends, bonus shares, rights, warrants, splits and reverse splits,
meetings, public exposes and tender offers (`--kind ipo` adds its IPO),
newest first. `idx stocks calendar [--from] [--to] [--kind ...]`: the
market's actions dated in the range (default today and 30 days ahead),
oldest first. MCP: get_corporate_actions, get_corporate_calendar.

Stockbit's `/corpaction/{type}` serves one kind per request; each type has
its own field prefix and list key, so entitlements are read by field
suffix. An action's `date` is the cum date for entitlements, else the
event's first day. Dividends keep their decimals. One request per kind,
cached 6 hours. AUTHERROR without a session.

Fixtures are the 2026-11-03 recordings (market-wide ones trimmed to
October-December). Goldens added; help-stocks and completions-bash gain
the two subcommands, MCP tools.json the two tools (regenerated with
UPDATE_GOLDEN=1). The MCP docs counted 17 tools without stockbit_login;
now 20.

Claude-Session: https://claude.ai/code/session_01RqPPVeVDrnLoP7NUZmLRxY

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_bonus.json

@@ -0,0 +1 @@
+{"data":{"bonus":[{"company_id":"1000003000","company_symbol":"PPGL","corp_action_active":true,"sahambonus_id":"7732","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"6 : 4","stocksplit_created":"","stocksplit_cumdate":"2026-11-02","stocksplit_exdate":"2026-11-03","stocksplit_factor":"1.6667","stocksplit_new":"4","stocksplit_old":"6","stocksplit_paymentdate":"2026-11-25","stocksplit_recdate":"2026-11-04","event_note":""},{"company_id":"397","company_symbol":"SPMA","corp_action_active":false,"sahambonus_id":"7730","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"100 : 30","stocksplit_created":"","stocksplit_cumdate":"2026-07-08","stocksplit_exdate":"2026-07-09","stocksplit_factor":"1.3","stocksplit_new":"30","stocksplit_old":"100","stocksplit_paymentdate":"2026-07-30","stocksplit_recdate":"2026-07-10","event_note":""},{"company_id":"457","company_symbol":"WINS","corp_action_active":false,"sahambonus_id":"7731","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"71 : 1","stocksplit_created":"","stocksplit_cumdate":"2026-05-25","stocksplit_exdate":"2026-05-26","stocksplit_factor":"1.0141","stocksplit_new":"1","stocksplit_old":"71","stocksplit_paymentdate":"2026-06-18","stocksplit_recdate":"2026-05-29","event_note":""},{"company_id":"1000004517","company_symbol":"MEJA","corp_action_active":false,"sahambonus_id":"7727","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"6 : 1","stocksplit_created":"","stocksplit_cumdate":"2026-04-16","stocksplit_exdate":"2026-04-17","stocksplit_factor":"1.1667","stocksplit_new":"1","stocksplit_old":"6","stocksplit_paymentdate":"2026-05-08","stocksplit_recdate":"2026-04-20","event_note":""},{"company_id":"1000004196","company_symbol":"CNMA","corp_action_active":false,"sahambonus_id":"7728","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"50 : 1","stocksplit_created":"","stocksplit_cumdate":"2026-04-14","stocksplit_exdate":"2026-04-15","stocksplit_factor":"1.02","stocksplit_new":"1","stocksplit_old":"50","stocksplit_paymentdate":"2026-04-28","stocksplit_recdate":"2026-04-16","event_note":""},{"company_id":"284","company_symbol":"MEGA","corp_action_active":false,"sahambonus_id":"7723","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"1 : 1","stocksplit_created":"","stocksplit_cumdate":"2026-04-09","stocksplit_exdate":"2026-04-10","stocksplit_factor":"2","stocksplit_new":"1","stocksplit_old":"1","stocksplit_paymentdate":"2026-04-30","stocksplit_recdate":"2026-04-13","event_note":""},{"company_id":"1000003506","company_symbol":"WGSH","corp_action_active":false,"sahambonus_id":"7722","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"1 : 1","stocksplit_created":"","stocksplit_cumdate":"2026-04-02","stocksplit_exdate":"2026-04-06","stocksplit_factor":"2","stocksplit_new":"1","stocksplit_old":"1","stocksplit_paymentdate":"2026-04-24","stocksplit_recdate":"2026-04-07","event_note":""},{"company_id":"1000000034","company_symbol":"RISE","corp_action_active":false,"sahambonus_id":"7721","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"25 : 12","stocksplit_created":"","stocksplit_cumdate":"2026-01-19","stocksplit_exdate":"2026-01-20","stocksplit_factor":"1.48","stocksplit_new":"12","stocksplit_old":"25","stocksplit_paymentdate":"2026-02-09","stocksplit_recdate":"2026-01-21","event_note":""},{"company_id":"43","company_symbol":"ASRM","corp_action_active":false,"sahambonus_id":"7720","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"20 : 1","stocksplit_created":"","stocksplit_cumdate":"2025-11-12","stocksplit_exdate":"2025-11-13","stocksplit_factor":"1.0500","stocksplit_new":"1","stocksplit_old":"20","stocksplit_paymentdate":"2025-12-05","stocksplit_recdate":"2025-11-14","event_note":""},{"company_id":"397","company_symbol":"SPMA","corp_action_active":false,"sahambonus_id":"7719","sahambonus_iqp_id":"","sahambonus_lastupdate":"","sahambonus_new_price":0,"sahambonus_new_share":0,"sahambonus_ratio":"100 : 30","stocksplit_created":"","stocksplit_cumdate":"2025-11-07","stocksplit_exdate":"2025-11-10","stocksplit_factor":"1.3000","stocksplit_new":"30","stocksplit_old":"100","stocksplit_paymentdate":"2025-11-25","stocksplit_recdate":"2025-11-11","event_note":""}]},"message":"Successfully retrieved stock bonus data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_pubex_bbca.json

@@ -0,0 +1 @@
+{"data":{"pubex":[{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2026-09-09","puexp_id":"156753","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"16:00:00","puexp_venue":"Public Expose Live 2026 yang tercantum pada website idx.co.id"},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2025-09-11","puexp_id":"87667","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"16:00:00","puexp_venue":"Public Expose Live 2025 yang tercantum pada website idx.co.id"},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2024-08-28","puexp_id":"36803","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"15:00:00","puexp_venue":"Public Expose Live 2024 Informasi Jadwal Pubex Live 2024 dan pendaftaran peserta di website www.idx.co.id"},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2023-11-29","puexp_id":"20156","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"10:00:00","puexp_venue":"Public Expose Live 2023"},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2022-09-14","puexp_id":"19470","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"10:00:00","puexp_venue":"Public Expose Live 2022"},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"puexp_date":"2021-09-08","puexp_id":"965","puexp_iqp_id":"","puexp_lastupdate":"","puexp_time":"15:00:00","puexp_venue":"Public Expose Live 2021\t\t\t"}]},"message":"Successfully retrieved Public Expose data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_reversesplit.json

@@ -0,0 +1 @@
+{"data":{"stock_reverse":[]},"message":"Successfully retrieved reverse split data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_rups_bbca.json

@@ -0,0 +1 @@
+{"data":{"rups":[{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2026-03-12","rups_id":"1460182","rups_time":"14:00","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA, Grand Indonesia Jl. M.H. Thamrin No. 1 Jakarta 10310","rups_eligible_date":"2026-02-09","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2025-03-12","rups_id":"860258","rups_time":"09:30","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA, Grand Indonesia, Jl. M.H. Thamrin No. 1, Jakarta, 10310","rups_eligible_date":"2025-02-07","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2024-03-14","rups_id":"385363","rups_time":"09:30","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA Grand Indonesia Lt 18.Jl. MH Thamrin No 1 Jakarta Selatan","rups_eligible_date":"2024-02-07","company_name":"","company_icon_url":""},{"company_id":"0","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2023-03-16","rups_id":"368621","rups_time":"09:30","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA","rups_eligible_date":"2023-02-13","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2022-03-17","rups_id":"365637","rups_time":"09:00","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA, Grand Indonesia\nJl. M.H. Thamrin No. 1\nJakarta","rups_eligible_date":"2022-02-14","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2021-09-23","rups_id":"356628","rups_time":"10:00","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA, Grand Indonesia\nJl. M.H. Thamrin No. 1\nJakarta","rups_eligible_date":"2021-08-27","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2021-03-29","rups_id":"314659","rups_time":"09:00","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA, Grand Indonesia, Lt 19. Jl. M.H Thamrin No 1. Jakarta\t\t\t\t  ","rups_eligible_date":"2021-02-24","company_name":"","company_icon_url":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"rups_created":"","rups_datahash":"","rups_date":"2020-07-30","rups_id":"314133","rups_time":"10:00","rups_iqp_agenda":"","rups_iqp_id":"","rups_iqp_rec_dt":"","rups_iqp_remark":"","rups_iqp_result":"","rups_iqp_revised_date":"","rups_iqp_type":"","rups_venue":"Menara BCA Grand Indonesia, Lt. 19. Jl. M.H. Thamrin No. 1. Jakarta\t\t\t  ","rups_eligible_date":"2020-07-03","company_name":"","company_icon_url":""}]},"message":"Successfully retrieved RUPS/Shareholders meeting data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_stock_dividend.json

@@ -0,0 +1 @@
+{"data":{"stock_dividend":[]},"message":"Successfully retrieved stock dividend data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_stocksplit.json

@@ -0,0 +1 @@
+{"data":{"stocksplit":[{"company_id":"601","company_symbol":"PRDA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-12-17","stocksplit_exdate":"2026-12-18","stocksplit_factor":"5","stocksplit_id":"6100","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"5","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 5","stocksplit_recdate":"2026-12-21","event_note":""},{"company_id":"600","company_symbol":"PBSA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-10-13","stocksplit_exdate":"2026-10-14","stocksplit_factor":"2","stocksplit_id":"6099","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"2","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 2","stocksplit_recdate":"2026-10-15","event_note":""},{"company_id":"488","company_symbol":"MLPT","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-07-20","stocksplit_exdate":"2026-07-21","stocksplit_factor":"25","stocksplit_id":"6095","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"25","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 25","stocksplit_recdate":"2026-07-22","event_note":""},{"company_id":"1000003487","company_symbol":"RMKE","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-07-16","stocksplit_exdate":"2026-07-17","stocksplit_factor":"5","stocksplit_id":"6094","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"5","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 5","stocksplit_recdate":"2026-07-20","event_note":""},{"company_id":"354","company_symbol":"RAJA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-07-15","stocksplit_exdate":"2026-07-16","stocksplit_factor":"5","stocksplit_id":"6092","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"5","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 5","stocksplit_recdate":"2026-07-17","event_note":""},{"company_id":"1000004216","company_symbol":"CYBR","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-05-12","stocksplit_exdate":"2026-05-13","stocksplit_factor":"2","stocksplit_id":"6091","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"2","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 2","stocksplit_recdate":"2026-05-18","event_note":""},{"company_id":"1000004217","company_symbol":"CYBR-W","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-05-12","stocksplit_exdate":"2026-05-13","stocksplit_factor":"2","stocksplit_id":"6093","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"2","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 2","stocksplit_recdate":"2026-05-18","event_note":""},{"company_id":"143","company_symbol":"DSSA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2026-04-08","stocksplit_exdate":"2026-04-09","stocksplit_factor":"25","stocksplit_id":"6089","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"25","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 25","stocksplit_recdate":"2026-04-10","event_note":""}]},"message":"Successfully retrieved stock split data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_stocksplit_bbca.json

@@ -0,0 +1 @@
+{"data":{"stocksplit":[{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2021-10-12","stocksplit_exdate":"2021-10-13","stocksplit_factor":"5","stocksplit_id":"3091","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"5","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 5","stocksplit_recdate":"2021-10-14","event_note":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2008-01-25","stocksplit_exdate":"2008-01-28","stocksplit_factor":"2","stocksplit_id":"3","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"2","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 2","stocksplit_recdate":"2008-01-30","event_note":""},{"company_id":"54","company_symbol":"BBCA","corp_action_active":false,"stocksplit_created":"","stocksplit_cumdate":"2004-06-07","stocksplit_exdate":"2004-06-08","stocksplit_factor":"2","stocksplit_id":"1061","stocksplit_iqp_id":"","stocksplit_lastupdate":"","stocksplit_lock":0,"stocksplit_new":"2","stocksplit_new_price":0,"stocksplit_new_share":0,"stocksplit_old":"1","stocksplit_ratio":"1 : 2","stocksplit_recdate":"2004-06-10","event_note":""}]},"message":"Successfully retrieved stock split data"}

crates/idx-core/tests/fixtures/stockbit_exodus_corpaction_tenderoffer.json

@@ -0,0 +1 @@
+{"data":{"tender":[{"company_id":"46","company_name":"Astra Otoparts Tbk.","company_symbol":"AUTO","corp_action_active":true,"tender_created":"","tender_datahash":"","tender_end":"2026-11-11","tender_id":"434","tender_paydate":"2026-11-18","tender_percentage":"4.95","tender_price":"3600","tender_shares":"238442293","tender_start":"2026-10-13","event_note":"","tender_price_formatted":"3,600"},{"company_id":"1000003921","company_name":"Hassana Boga Sejahtera Tbk.","company_symbol":"NAYZ","corp_action_active":true,"tender_created":"","tender_datahash":"","tender_end":"2026-11-03","tender_id":"433","tender_paydate":"2026-11-10","tender_percentage":"45.84","tender_price":"75","tender_shares":"1169011472","tender_start":"2026-10-05","event_note":"","tender_price_formatted":"75"},{"company_id":"1000004066","company_name":"Era Media Sejahtera Tbk.","company_symbol":"DOOH","corp_action_active":true,"tender_created":"","tender_datahash":"","tender_end":"2026-11-03","tender_id":"432","tender_paydate":"2026-11-09","tender_percentage":"33.91","tender_price":"148","tender_shares":"2624548624","tender_start":"2026-10-05","event_note":"","tender_price_formatted":"148"},{"company_id":"409","company_name":"Solusi Tunas Pratama Tbk.","company_symbol":"SUPR","corp_action_active":true,"tender_created":"","tender_datahash":"","tender_end":"2026-10-21","tender_id":"431","tender_paydate":"2026-11-02","tender_percentage":"74.39","tender_price":"45000","tender_shares":"729102","tender_start":"2026-09-24","event_note":"","tender_price_formatted":"45,000"},{"company_id":"278","company_name":"Mitrabahtera Segara Sejati Tbk.","company_symbol":"MBSS","corp_action_active":false,"tender_created":"","tender_datahash":"","tender_end":"2026-10-08","tender_id":"430","tender_paydate":"2026-10-15","tender_percentage":"17.50","tender_price":"2915","tender_shares":"306259839","tender_start":"2026-09-09","event_note":"","tender_price_formatted":"2,915"},{"company_id":"194","company_name":"Inti Bangun Sejahtera Tbk.","company_symbol":"IBST","corp_action_active":false,"tender_created":"","tender_datahash":"","tender_end":"2026-10-02","tender_id":"429","tender_paydate":"2026-10-14","tender_percentage":"0.05","tender_price":"5400","tender_shares":"650832","tender_start":"2026-09-04","event_note":"","tender_price_formatted":"5,400"}]},"message":"Successfully retrieved tender offer data"}