Major change: I have added finance_history

* pulled old values of data via restic backups
    * inserted them into a new finance_history table
    * added a finplan user, use of sudo & better ENV (container/production) & wrapper.sh into Dockerfile (like I do for other projects)
    * recalculate the bills / Living Expenses now we have real bills for a year
    * remove tax back for now (need to handle quit date vs. end of financial year better)
    * hard-coded / hacked in 2026 for pay cycle dates / should be dynamic, but not sure I'll work in 2027+
    * refactor front-end to handle 2026 as the current year / its more or less dynamic (via hard-coded FIRST_YEAR) variable - could not use datetime, as it was in late Dec. when I noticed the issue ('next pay' was in 2026, current year was 2025)
    * also added history to graphs, changed formatting to make the history /
    * savings projections to be orannge with circles, but historical is a solid line, future is a dash, also made all lines have lineWidth: 1 for aesthetics

db.py

@@ -177,10 +177,20 @@ def get_finance_data():
     conn.close()
     return dict(finance)
 
+def get_historical_data():
+    conn = connect_db(False)
+    # this treats the returns as dicts
+    conn.row_factory = sqlite3.Row
+    cur = conn.cursor()
+    cur.execute('SELECT * FROM finance_history order by snapshot_date')
+    hist = [dict(row) for row in cur.fetchall()]
+    conn.close()
+    return hist
+
 def get_budget_data(finance_data):
     # annual bills - health ins (5k), rates (2.6), electricity (1.2), gas (2.1) - but 1.4 in 2025 due to EU trip, internet (1.6), car insurance (.7), rego (.8), house insurance (2.4), GFC (2.6), water (1.1), eweka (.1), phones (.5), melb. pollen (.03), nabu casa (.1)   --- noting phone is elevated presuming I also go onto Aldi plan, but that there is no family discount, and health will be extra after stop working
     # fudging below - its more like 15.2 + health, and really gas will be more than 2.1 than 1.4, so about 16+5
-    bills = 21000
+    bills = 25357.07
     BUDGET=[]
     BUDGET.append( ('Bills', f"${bills:,.2f}") )
     BUDGET.append( ('Buffer', f"${finance_data['CBA']*finance_data['CBA_price']+finance_data['TLS']*finance_data['TLS_price']:,.2f}") )